diff --git a/command.py b/command.py
index e429d4fe..25d803b0 100644
--- a/command.py
+++ b/command.py
@@ -55,7 +55,7 @@ class CommandRegistry:
 
             @functools.wraps(func)
             def wrapper(*args, **kwargs):
-                func(*args, **kwargs)
+                return func(*args, **kwargs)
 
             return wrapper
 
diff --git a/commands/note.py b/commands/note.py
index d40855f3..a90e6f8a 100644
--- a/commands/note.py
+++ b/commands/note.py
@@ -5,7 +5,7 @@ import pytz
 
 from command import CommandRegistry
 from commands import core
-from interactive import get_session, has_session, remove_session
+from interactive import *
 from little_shit import get_default_db_path, get_source, get_target
 
 __registry__ = cr = CommandRegistry()
@@ -32,9 +32,9 @@ _cmd_remove = 'note.remove'
 @cr.register('记笔记', '添加笔记')
 @cr.register('take', 'add', hidden=True)
 @cr.restrict(group_admin_only=True)
-def take(args_text, ctx_msg, force=False):
+def take(args_text, ctx_msg, allow_interactive=True):
     source = get_source(ctx_msg)
-    if not force and (not args_text or has_session(source, _cmd_take)):
+    if allow_interactive and (not args_text or has_session(source, _cmd_take)):
         # Be interactive
         return _take_interactively(args_text, ctx_msg, source)
 
@@ -74,9 +74,9 @@ def list_all(_, ctx_msg):
 @cr.register('删除笔记')
 @cr.register('remove', 'delete', hidden=True)
 @cr.restrict(group_admin_only=True)
-def remove(args_text, ctx_msg, force=False):
+def remove(args_text, ctx_msg, allow_interactive=True):
     source = get_source(ctx_msg)
-    if not force and (not args_text or has_session(source, _cmd_remove)):
+    if allow_interactive and (not args_text or has_session(source, _cmd_remove)):
         # Be interactive
         return _remove_interactively(args_text, ctx_msg, source)
 
@@ -123,7 +123,7 @@ def _take_interactively(args_text, ctx_msg, source):
         s.state += 1
 
     def save_content(s, a, c):
-        take(a, c, force=True)
+        take(a, c, allow_interactive=False)
         return True
 
     if _cmd_take not in _state_machines:
@@ -144,7 +144,7 @@ def _remove_interactively(args_text, ctx_msg, source):
         s.state += 1
 
     def remove_note(s, a, c):
-        remove(a, c, force=True)
+        remove(a, c, allow_interactive=False)
         return True
 
     if _cmd_remove not in _state_machines:
diff --git a/commands/scheduler.py b/commands/scheduler.py
index d36d007b..c671272f 100644
--- a/commands/scheduler.py
+++ b/commands/scheduler.py
@@ -20,7 +20,7 @@ _scheduler = BackgroundScheduler(
         'default': SQLAlchemyJobStore(url=_db_url)
     },
     executors={
-        'default': ProcessPoolExecutor(max_workers=2)
+        'default': ProcessPoolExecutor(max_workers=5)
     },
     timezone=pytz.timezone('Asia/Shanghai')
 )
@@ -152,16 +152,44 @@ def add_job(args_text, ctx_msg, internal=False):
 @cr.restrict(full_command_only=True, group_admin_only=True)
 def remove_job(args_text, ctx_msg, internal=False):
     job_id_without_suffix = args_text.strip()
+    if not job_id_without_suffix:
+        _send_text('请指定计划任务的 ID', ctx_msg, internal)
+        return False
     job_id = job_id_without_suffix + '_' + get_target(ctx_msg)
     try:
         _scheduler.remove_job(job_id, 'default')
         _send_text('成功删除计划任务 ' + job_id_without_suffix, ctx_msg, internal)
+        return True
     except JobLookupError:
         _send_text('没有找到计划任务 ' + job_id_without_suffix, ctx_msg, internal)
+        return False
+
+
+@cr.register('get_job', 'get-job', 'get')
+@cr.restrict(full_command_only=True)
+def get_job(args_text, ctx_msg, internal=False):
+    job_id_without_suffix = args_text.strip()
+    if not job_id_without_suffix:
+        _send_text('请指定计划任务的 ID', ctx_msg, internal)
+        return None
+    job_id = job_id_without_suffix + '_' + get_target(ctx_msg)
+    job = _scheduler.get_job(job_id, 'default')
+    if internal:
+        return job
+    reply = '找到计划任务如下：\n'
+    reply += 'ID：' + job_id_without_suffix + '\n'
+    reply += '下次触发时间：\n%s\n' % job.next_run_time.strftime('%Y-%m-%d %H:%M')
+    reply += '命令：\n'
+    command_list = job.kwargs['command_list']
+    if len(command_list) > 1:
+        reply += reduce(lambda x, y: x[0] + ' ' + x[1] + '\n' + y[0] + ' ' + y[1], command_list)
+    else:
+        reply += command_list[0][0] + ' ' + command_list[0][1]
+    _send_text(reply, ctx_msg, internal)
 
 
 @cr.register('list_jobs', 'list-jobs', 'list')
-@cr.restrict(full_command_only=True, group_admin_only=True)
+@cr.restrict(full_command_only=True)
 def list_jobs(_, ctx_msg, internal=False):
     target = get_target(ctx_msg)
     job_id_suffix = '_' + target
@@ -173,6 +201,7 @@ def list_jobs(_, ctx_msg, internal=False):
         job_id = job.id[:-len(job_id_suffix)]
         command_list = job.kwargs['command_list']
         reply = 'ID：' + job_id + '\n'
+        reply += '下次触发时间：\n%s\n' % job.next_run_time.strftime('%Y-%m-%d %H:%M')
         reply += '命令：\n'
         if len(command_list) > 1:
             reply += reduce(lambda x, y: x[0] + ' ' + x[1] + '\n' + y[0] + ' ' + y[1], command_list)
@@ -213,7 +242,7 @@ def _send_add_job_help_msg(ctx_msg, internal):
     )
     core.echo(
         '--multi 为可选项，表示读取多条命令\n'
-        'job_id 为必填项，允许使用符合正则 [_\-a-zA-Z0-9] 的字符，作为计划任务的唯一标识\n'
+        'job_id 为必填项，允许使用符合正则 [_\-a-zA-Z0-9] 的字符，作为计划任务的唯一标识，如果指定重复的 ID，则会覆盖原先已有的\n'
         'command 为必填项，从 job_id 之后第一个非空白字符开始，如果加了 --multi 选项，则每行算一条命令，否则一直到消息结束算作一整条命令（注意这里的命令不要加 / 前缀）\n'
         '\n'
         '例 1：\n'
diff --git a/commands/zhihu.py b/commands/zhihu.py
index 0229f891..9b8a365b 100644
--- a/commands/zhihu.py
+++ b/commands/zhihu.py
@@ -3,30 +3,35 @@ from datetime import date, timedelta
 
 import requests
 
-from little_shit import SkipException
 from command import CommandRegistry
 from commands import core
+from commands import scheduler
+from interactive import *
+from little_shit import SkipException, get_source
 
 __registry__ = cr = CommandRegistry()
 
 
-@cr.register('zhihu', 'zhihu-daily', '知乎日报')
+@cr.register('zhihu-daily', 'zhihu', '知乎日报')
 def zhihu_daily(args_text, ctx_msg):
-    param = args_text.strip()
+    arg = args_text.strip()
     reply = None
     try:
-        if not param:
+        if not arg:
             sub_url = '/latest'
-        elif re.match('\d{8}', param) and param >= '20130519':
-            thedate = date(year=int(param[:4]), month=int(param[4:6]), day=int(param[6:]))
-            sub_url = '/before/' + (thedate + timedelta(days=1)).strftime('%Y%m%d')
         else:
-            reply = '命令格式错误，正确的命令格式：\n' \
-                    '/zhihu\n' \
-                    '或\n' \
-                    '/zhihu 20161129\n' \
-                    '注意如果指定日期，格式一定要对，且日期需在 20130519 之后。'
-            raise SkipException
+            m = re.match('(\d{4})-(\d{2})-(\d{2})', arg)
+            # and arg >= '20130519':
+            if m and ''.join(m.groups()) >= '20130519':
+                thedate = date(year=int(m.group(1)), month=int(m.group(2)), day=int(m.group(3)))
+                sub_url = '/before/' + (thedate + timedelta(days=1)).strftime('%Y%m%d')
+            else:
+                reply = '命令格式错误，正确的命令格式：\n' \
+                        '/zhihu\n' \
+                        '或\n' \
+                        '/zhihu 2016-11-29\n' \
+                        '注意如果指定日期，格式一定要对，且日期需在 2013-05-19 之后（这一天知乎日报诞生）。'
+                raise SkipException
         full_url = 'https://news-at.zhihu.com/api/4/news' + sub_url
         resp = requests.get(
             full_url,
@@ -58,5 +63,108 @@ def zhihu_daily(args_text, ctx_msg):
             raise SkipException
     except SkipException:
         reply = reply if reply else '发生了未知错误……'
-        pass
     core.echo(reply, ctx_msg)
+
+
+_cmd_subscribe = 'zhihu.subscribe'
+_scheduler_job_id = _cmd_subscribe
+
+
+@cr.register('订阅知乎日报')
+@cr.register('subscribe', hidden=True)
+@cr.restrict(group_admin_only=True)
+def subscribe(args_text, ctx_msg, allow_interactive=True):
+    arg = args_text.strip()
+    source = get_source(ctx_msg)
+    if allow_interactive and (not arg or has_session(source, _cmd_subscribe)):
+        # Be interactive
+        return _subscribe_interactively(args_text, ctx_msg, source)
+
+    force = False
+    if arg.startswith('-f '):
+        force = True
+        arg = arg.split(' ', 1)[1].strip()
+    reply = None
+    try:
+        m = re.match('([0-1]\d|[2][0-3])(?::|：)?([0-5]\d)', arg)
+        if m:
+            job = scheduler.get_job(_scheduler_job_id, ctx_msg, internal=True)
+            if job and not force:
+                reply = '已经订阅过了哦～\n' \
+                        + '下次推送时间：\n' \
+                        + job.next_run_time.strftime('%Y-%m-%d %H:%M') + '\n' \
+                        + '如果需要更改推送时间，请先取消订阅再重新订阅，' \
+                        + '或在订阅命令的时间参数前面加 -f 来强制更新推送时间'
+                raise SkipException
+            job = scheduler.add_job(
+                '-M %s -H %s %s zhihu.zhihu-daily' % (m.group(2), m.group(1), _scheduler_job_id),
+                ctx_msg,
+                internal=True
+            )
+            if job:
+                # Succeeded to add a job
+                reply = '订阅成功，我会在每天 %s 推送哦～' % ':'.join((m.group(1), m.group(2)))
+            else:
+                reply = '订阅失败，可能后台出了点问题呢～'
+        else:
+            reply = '命令格式错误，正确的命令格式：\n' \
+                    '/zhihu.subscribe\n' \
+                    '或\n' \
+                    '/zhihu.subscribe [-f] 20:30\n'
+    except SkipException:
+        reply = reply if reply else '发生了未知错误……'
+    core.echo(reply, ctx_msg)
+
+
+@cr.register('取消订阅知乎日报')
+@cr.register('unsubscribe', hidden=True)
+@cr.restrict(group_admin_only=True)
+def unsubscribe(_, ctx_msg):
+    if scheduler.remove_job(_scheduler_job_id, ctx_msg, internal=True):
+        core.echo('取消订阅成功～', ctx_msg)
+    else:
+        core.echo('还没有订阅过哦～', ctx_msg)
+
+
+_state_machines = {}
+
+
+def _subscribe_interactively(args_text, ctx_msg, source):
+    def confirm_override(s, a, c):
+        job = scheduler.get_job(_scheduler_job_id, c, internal=True)
+        if job:
+            core.echo('先前已经订阅过了哦～\n'
+                      + '下次推送时间：\n'
+                      + job.next_run_time.strftime('%Y-%m-%d %H:%M') + '\n'
+                      + '要更改推送时间吗？\n'
+                      + '回复 1 继续，回复 0 放弃', c)
+            s.data['need_confirm'] = True
+        else:
+            s.data['need_confirm'] = False
+            wait_for_time(s, a, c)
+        s.state += 1
+
+    def wait_for_time(s, a, c):
+        if s.data['need_confirm']:
+            if a.strip() != '1':
+                # Cancel
+                core.echo('已放弃更改～')
+                return True
+        core.echo('请发送想要获取推送的时间（格式如 20:05）：', c)
+        s.state += 1
+
+    def save(s, a, c):
+        subscribe('-f ' + a, c, allow_interactive=False)
+        return True
+
+    if _cmd_subscribe not in _state_machines:
+        _state_machines[_cmd_subscribe] = (
+            confirm_override,  # 0
+            wait_for_time,  # 1
+            save  # 2
+        )
+
+    sess = get_session(source, _cmd_subscribe)
+    if _state_machines[_cmd_subscribe][sess.state](sess, args_text, ctx_msg):
+        # Done
+        remove_session(source, _cmd_subscribe)
diff --git a/config.py b/config.py
index 7cafd0c4..c8485c0b 100644
--- a/config.py
+++ b/config.py
@@ -1,6 +1,6 @@
 config = {
     'fallback_command': 'core.chat',
-    'command_start_flags': ('/', '／'),
+    'command_start_flags': ('/', '／', '来，'),
     'command_name_separators': ('\.', '->', '::', '/'),  # Regex
     'command_args_start_flags': ('，', '：', ', ', ': '),  # Regex
 }