FOOT GLIDE ($5.99):
Out of all the products I tried, this one is the most humble but arguably the most useful. I plan to use it and stash it in my bag the whole summer. Foot Glide is the foot-specific sibling of Body Glide, the anti-chafing product runners use.
It looks like a miniature deodorant stick, smells as powdery as one, and feels like one, too. Despite having the word “glide” in the name, this product isn’t slippery. You apply it all over your feet wherever you anticipate rubbing or blisters, which I did when I attempted to wear the Prada pumps for a third day without any anti-pain spray. I didn’t have any redness or blisters on the back of my heels or on my toes. The company recommends using it during humid weather, which is really when your feet are most prone to rubbing and blisters.