diff --git a/common.py b/common.py
index 11d5842..0ed3731 100644
--- a/common.py
+++ b/common.py
@@ -21,7 +21,10 @@ import discord
 import discord.ext.commands as commands
 
 
-__all__ = ["colours", "cat", "emojis", "error_embed_factory"]
+import data.options as opt
+
+
+__all__ = ["colours", "cat", "emojis", "error_embed_factory", "add_react", "check_if_owner"]
 
 
 # --- Common values ---
@@ -56,3 +59,19 @@ def error_embed_factory(ctx: commands.Context, exception: Exception, debug_mode:
                      icon_url=str(ctx.author.avatar_url))
     embed.description = "```\n" + '\n'.join(fmtd_ex) + "```"
     return embed
+
+
+async def add_react(msg: discord.Message, react: str):
+    try:
+        await msg.add_reaction(react)
+    except discord.Forbidden:
+        print(f"[!!] Missing permissions to add reaction in '{msg.guild.id}/{msg.channel.id}'!")
+
+
+# --- Checks ---
+
+async def check_if_owner(ctx: commands.Context):
+    if ctx.author.id in opt.owners_uids:
+        return True
+    await add_react(ctx.message, emojis.bad)
+    return False
diff --git a/main.py b/main.py
index 8edf832..43a8a8d 100644
--- a/main.py
+++ b/main.py
@@ -37,48 +37,30 @@ bot = commands.Bot(command_prefix=opt.prefix,
                    help_command=commands.MinimalHelpCommand())
 
 
-# --- Helper functions ---
-
-async def add_react(msg: discord.Message, react: str):
-    try:
-        await msg.add_reaction(react)
-    except discord.Forbidden:
-        print(f"[!!] Missing permissions to add reaction in '{msg.guild.id}/{msg.channel.id}'!")
-
-
-# --- Checks ---
-
-async def check_if_owner(ctx: commands.Context):
-    if ctx.author.id in opt.owners_uids:
-        return True
-    await add_react(ctx.message, cmn.emojis.bad)
-    return False
-
-
 # --- Commands ---
 
 @bot.command(name="restart", hidden=True)
-@commands.check(check_if_owner)
+@commands.check(cmn.check_if_owner)
 async def _restart_bot(ctx: commands.Context):
     """Restarts the bot."""
     global exit_code
-    await add_react(ctx.message, cmn.emojis.good)
+    await cmn.add_react(ctx.message, cmn.emojis.good)
     exit_code = 42  # Signals to the wrapper script that the bot needs to be restarted.
     await bot.logout()
 
 
 @bot.command(name="shutdown", hidden=True)
-@commands.check(check_if_owner)
+@commands.check(cmn.check_if_owner)
 async def _shutdown_bot(ctx: commands.Context):
     """Shuts down the bot."""
     global exit_code
-    await add_react(ctx.message, cmn.emojis.good)
+    await cmn.add_react(ctx.message, cmn.emojis.good)
     exit_code = 0  # Signals to the wrapper script that the bot should not be restarted.
     await bot.logout()
 
 
 @bot.group(name="extctl", hidden=True)
-@commands.check(check_if_owner)
+@commands.check(cmn.check_if_owner)
 async def _extctl(ctx: commands.Context):
     """Extension control commands.
     Defaults to `list` if no subcommand specified"""
@@ -101,7 +83,7 @@ async def _extctl_list(ctx: commands.Context):
 async def _extctl_load(ctx: commands.Context, extension: str):
     try:
         bot.load_extension(ext_dir + "." + extension)
-        await add_react(ctx.message, cmn.emojis.good)
+        await cmn.add_react(ctx.message, cmn.emojis.good)
     except commands.ExtensionError as ex:
         embed = cmn.error_embed_factory(ctx, ex, debug_mode)
         await ctx.send(embed=embed)
@@ -111,7 +93,7 @@ async def _extctl_load(ctx: commands.Context, extension: str):
 async def _extctl_reload(ctx: commands.Context, extension: str):
     try:
         bot.reload_extension(ext_dir + "." + extension)
-        await add_react(ctx.message, cmn.emojis.good)
+        await cmn.add_react(ctx.message, cmn.emojis.good)
     except commands.ExtensionError as ex:
         embed = cmn.error_embed_factory(ctx, ex, debug_mode)
         await ctx.send(embed=embed)
@@ -121,7 +103,7 @@ async def _extctl_reload(ctx: commands.Context, extension: str):
 async def _extctl_unload(ctx: commands.Context, extension: str):
     try:
         bot.unload_extension(ext_dir + "." + extension)
-        await add_react(ctx.message, cmn.emojis.good)
+        await cmn.add_react(ctx.message, cmn.emojis.good)
     except commands.ExtensionError as ex:
         embed = cmn.error_embed_factory(ctx, ex, debug_mode)
         await ctx.send(embed=embed)