In Starcraft 2: Wings of Liberty for the PC, there is a cheat that upgrades your weapons, armor, and shields by 1 every time you use it. During the game hit the Enter key to bring up the message prompt and type in iamironman to enable the cheat.
Note that once cheats are turned on, you will not get achievements for that game.
Check out my other article for more Starcraft 2: Wings of Liberty Cheats.