In single player games, yes I do. Generally, I only use them after I've played through normally and just want to enjoy myself instead of regrind.
Also, some games have experiences which can't really be had without using some form of cheat- case in point, in Fallout 3 there was a special version of the Fat Man nuke launcher, the Fat Man MIRV, which fired something like 5 or so nukes at a time. Not spectacularly useful (they sprayed out wildly) and you generally got caught in the blast radius. In addition, mini-nukes were a very finite resource and took effort to find in the game.
So, after a long day, there's something to be said for using cheats to load up on mini-nukes, climb a tall building, and just blaze mini-nukes onto harmless wasteland. It's not helping you win the game (though it could if you intended to) but it allows you to do something that would otherwise be a massive pain.
Also, some games have experiences which can't really be had without using some form of cheat- case in point, in Fallout 3 there was a special version of the Fat Man nuke launcher, the Fat Man MIRV, which fired something like 5 or so nukes at a time. Not spectacularly useful (they sprayed out wildly) and you generally got caught in the blast radius. In addition, mini-nukes were a very finite resource and took effort to find in the game.
So, after a long day, there's something to be said for using cheats to load up on mini-nukes, climb a tall building, and just blaze mini-nukes onto harmless wasteland. It's not helping you win the game (though it could if you intended to) but it allows you to do something that would otherwise be a massive pain.