Help With Taking A Sticker off a Comic

Keegan

I would love some suggestions on how to take a sticker off a comic cover. I have tried suggestions from a google search but nothing has worked very well. Youtube has videos of people using a blow dryer then peeling the sticker off. I used my wife's hair straightener for a few seconds and it peels right off. The problem is it leaves the sticky residue behind on the cover which sticks to the bag or other comics if unbagged. Any suggestions would be appreciated!
Thanks