[norsairius]

If you're worried about oil, you can try putting the filter in a pillowcase and vigorously swing it around a bit to get air going through it and some excess oil off before putting it back in the car. Obviously you'll want to make sure you don't hit anything, so do this outdoors (where people can watch and judge you) or in a big room indoors (where your friends/family can watch and judge you).