I love getting new heels, but sometimes the insole is just a bit too slippery. Especially if you're wearing stockings or pantyhose.
With this quick mod, you can make your favorite heels a bit more stable in 10 minutes using only some scrap fabric and spray adhesive. So quit worrying and start walking tall.
Step 1: Measure and make initial cuts
You will need some scraps of strong fabric that are at least the size of your feet. Don't go for anything silky or thin, as that will probably not make much of a change. And don't go for a thicker fabric like felt, as that will alter the fit of the shoe. Pull a Goldilocks, and find a fabric that's just right.
This yellow fabric I found was about the thickness of tee-shirt cotton, but with a bit more texture.
Using some chalk, a pencil, or a pen (if you don't care about the marks), roughly trace the outline of your foot. Cut out.