In general, you should not have to bathe your cat, as they are very good at keeping themselves clean. Get familiar with the very specific reasons why your cat might need a bath.
It’s a good idea to keep plenty of clean cotton balls in the house, as they’re good for all sorts of pet care. Use a moistened cotton ball to remove any discharge from around the eyes.
Most cats do a credible job of keeping themselves clean, but they still need your help when it comes to preventing matted hair and fur balls, and for detecting problems with eyes and ears.