I've never bathed any of my cats except for one, who had a terrible skin condition & would bloody herself from the itching. I used something called "Kitty Wipes", available at PetsMart and probably other places too. They're wet wipes, like you buy for babies.
Actually, kitties are usually very good at bathing their ownselves. I would never tramatize one of my kits with a bath or shower. I don't think it necessary IMHO.