When I was a kid, I exploited the hell out of Pokemon Blue. MissingNo, you were my saviour. You and your many, many, Masterballs.
...
That sounded a bit wrong.
But I don't use cheats anymore, unless I'm just messing around to kill time on something.
Of course, with my copy of FireRed on the way, I guess I'll have to go back and play Pokemon the honest way.