What's an easy solution to getting dried spraypaint off of my hands?
Wash them very well in the sink with liquid dishwashing detergent every few hours until it comes off. That's the safest way. Even if you do have paint on your hands for a while, does it really matter all that much? People will probably understand.
Gasoline or any petroleum based solvent. STAY AWAY from flames or sparks. When you remove the paint be sure to wash your hands with soap and water as soon as you are done. BE CAREFUL.
Don't listen to the 3 hash solvent guys there is soap with pumice in it. I use stuff called gojo