Does anyone else think they fall for Angela a little more after she has a post like that?
A cordless impact works great in these situations too. As Angela said, if it's a part that could be messy, bring a few latex gloves along too. Water if it's hot, and you are going to be there a while.
I like to look around, and see what you can find on cars that parts should never be on. I once found a PERFECT Plum Crazy Road Runner horn on an old Cadillac.