A filthy car can also easily get a girl uninterested. If you can't keep your car clean, how much your home or even yourself. So, guys keep it clean always. It doesn't, however, mean that you have to keep your car professionally cleaned every other day. That's only true if you are the messy-I-can't-clean-my-own-car type of guy. A good clean in and out once in a while is enough to capture her interest.
