There are a bunch of posts/articles out there on what you should keep in your tennis bag. Most of them list the standard items (grips, racquets, strings, towel, water, etc). I'm curious to see what you keep in your bag that's not obvious and the reason you have it.
I'll start. For example, I put those little shoe deodorizer balls in the shoe compartment of my bag. Shoe Ball Deodorizers
I'll start. For example, I put those little shoe deodorizer balls in the shoe compartment of my bag. Shoe Ball Deodorizers