Raise your hand if you use baby powder for paper crafts.
I vividly remember the day I learned that you can use baby powder on a sticker to remove the stickiness. Why would you do that? Well, it allows you to control where a sticker will or won't stick. I wanted this Happy Birthday sticker to stick to the red paper strip, but not to the card I'd be wrapping the strip around.
After I stuck the sticker to the red paper, I sprinkled baby powder on the back of it to remove the stickiness from the exposed parts. That allowed me to create a closure for this card that the recipient will remove.