Anti-perspirant can help, just make sure you wipe off the residue before applying glue.

Another long lost trick is to use liquid bandage. It definitely increases hold time for me, and my skin breaks down glue FAST. I don't use either product since due to a skin condition I can only go 4 days between removals, so by the time the glue/tape gets gooey I have to take it off and give my scalp a break anyway.