I just had my mind blown by a super simple way to get cute patterns on your painted nails. Chloe's Nails uses scrap booking scissors to cut a piece of scotch tape length wise to apply to a nail and paint over. This is so easy and so smart! It is just another "Why didn't I think of that?!" moment.
I have also used the negative sticky paper around small stickers to use as temporary templates on my nails. Not to mention lacquering clear over the stickers themselves.