If you go to the tanning salon and get the spray-on tan, and they show you a video and the video says "make sure you use a LOT of barrier cream on your hands," REALLY make sure you use a LOT of barrier cream on your hands, and DON'T feel compelled to "rub your tan in," like they had that one guy Butch do on Queer Eye. Not using enough barrier cream and trying to rub everything in results in brown palms.
Not that I would know or anything...
{grumble grumble} scratcha-frackin' fat pasty arms, scratcha-frackin' sleeveless bridesmaid gown {grumble grumble}