Removing sticky tape from a chassis

[Timee80]

Whats the best way to remove whats left of double sided sticky tape from a chassis. Ive tried to peel off some tape on my cougar sv and dont want to scratch the chassis by using a screwdriver or other sharp edge object to get rid of the remaining stuff. It was the white double sided tape i had used and it leaves some fluffy white rubbish behind that looks horrible.
Is there an easy way or am i going to have to rub with my thumb and get a blister?