OK, well, once you get the sticker off, just get a couple of drops of Goo-Gone (basically orange-scented mineral spirits sold to get rid of, well...goo) and gently massage it with your finger on the sticky area. The goo will start to dissolve, and eventually wipe right up. Don't use too much though, or else the area might appear raised if it soaks it up. I've used this with excellent effect on both game boxes and action figure cards.