Fixing Loose Glasses with Rubberbands

This morning my glasses were so loose they were sliding down my nose. I keep a package of assorted rubber bands, and I selected two of the tiniest.

I doubled them and slipped them onto the ends of the glasses legs, then looped them once more, to make them as tight as possible. Then I slid them up the legs and into the hinges holding the glasses together. Voila! Now my glasses fit tightly again.