Where is your umbrella? Your lotion? Hand sanitizer?
Make sure your bag has mesh pockets on the sides for a good-sized umbrella. You can keep it there year round and will never be wet because it’s in the room, house, car, forgot on bus/train.
Mini pockets on your bag are a great place to put a travel size lotion and hand sanitizer. We touch so many things and people in the course of the day, this is an easy place to put some for yourself. Even add a lip balm or gloss for on the go fixing.