Take this to the bank: You do NOT..........repeat, NOT.........give cats a bath. They are exceedingly clean animals, and they don't need YOUR (e.g. owner's) help, thank you VERY much.
'Sides...............it would hurt like hell to try.
You do when they bump into Mr. Skunk.
Uh, I have a Maine Coone mix, who weighs 25lbs. He eats like a pig (diets DO NOT work,) knocks over the trash, won't play (exercise,) and CAN NOT clean his rear end. Sometimes the other cats get fed up and clean it for him (that's what friends are for!) but sometimes he has feces stuck to his back end and spreads it through the house. EWWWWW. We haven't bathed him more than a couple of times, but sometimes you just need to do it.