Hi Andrea,
Everyone will have different packs depending on what works for them. There was a post a while ago about it, I will post the link below. I include pain medication, wrist and knee braces, heat pack and cold pack, and some topical pain relief like Salon-Pas. I also keep a pair of comfortable shoes in my car since they didn’t fit in my bag. Some people put high energy snacks. See the post, I hope that helps.