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
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.
Step 2: Measure and cut again
Step 3: Adhere
Starting at the heel, spray the top half of your new insole. Place in, making sure the heels line up, and give some time to dry. After a minute, spray the bottom half of your insole and place where you want it in your shoe. I used a coffee stirrer to really make sure the toes were securely in. Let dry for at least an hour.
**note: sometimes the spray adhesive can get on your shoe. If you're worried about your expensive kicks, take a second to cover the outside of your shoes before spraying. If you're like me and didn't notice the damage until after the fact , simply take some oil on a paper towel and rub on the sticky areas. It should come off pretty easily. Oily substances are great for this.