Help - Shows most scripting and console commands, but isn't particularly well sorted, and seems to have many depreciated functions (some FO3, some Oblivion) which shouldn't really relate to anything in Skyrim. Some caution should be practiced with debugging commands since they can ruin your game if used improperly. To open console, press the tilde key ' ~ ' when in game.
This is mostly for those who aren't modders or who aren't familiar with what can be done in the console to answer to common needs.