These are some good command ideas. Chat commands.
/lightning Makes lightning strike the block you are looking at.
/permission (command) Lets people have permission to certain commands.
/protect Makes it so only you can open your chest or door.
/mainspawn Sets the main spawn of a server.
/spawn Takes you to your spawn.
/fly Makes you fly.
/mobspawner (mob) Makes a mob spawner.
/spawnmob (mob) Spawns a mob.
/name (name) Names the item in your hand. Command block only.
/typeme (sentence) If you type the same sentence the command block will send a redstone single. Adding on to commands.
/kill (player) You can kill any player. Also you can use /kill in a command block.
Chat commands.
/lightning Makes lightning strike the block you are looking at.
/permission (command) Lets people have permission to certain commands.
/protect Makes it so only you can open your chest or door.
/mainspawn Sets the main spawn of a server.
/spawn Takes you to your spawn.
/fly Makes you fly.
/mobspawner (mob) Makes a mob spawner.
/spawnmob (mob) Spawns a mob.
/name (name) Names the item in your hand.
Command block only.
/typeme (sentence) If you type the same sentence the command block will send a redstone single.
Adding on to commands.
/kill (player) You can kill any player. Also you can use /kill in a command block.
Please read these two threads:
http://www.minecraftforum.net/forums/minecraft-discussion/suggestions/2572194-please-read-this-before-making-a-suggestion-v2-0
http://www.minecraftforum.net/forums/minecraft-discussion/suggestions/44180-for-the-critics-ftc
Yes the moon can be orange, you'll see it when the moon has just risen.
Cheese door, iron sky, happy Iceland. I just said random words. The reason of this: complete random, but the question is, why are you reading this?
/give [name] 137
That's how you get a command block.
Most of these can be used with plugins, but I don't own a server, so I think it would be really cool to have some of these in vanilla! Support.