Do I need to give my cat a bath?

Most cats will not regularly require an immersion bath, but if they get into anything dangerous (oil from the car, cleaning products, etc.) they would be better off with you getting the substance off with water instead of them ingesting it. If your cat has some dandruff or a greasy spot (usually because they are overweight and cannot reach much of their back) you can take a moist rag (water only) and help keep that area clean. Brushing also helps keep dandruff and other problems down. There are also moist towelettes sold in pet supply stores that can be used to reduce cat allergens, if there is a mild allergy in the family.