First Aid Supplies
Blisters happen. So do scrapes and scratches. Don't be that person who ends up spending $7 on a pack of five bandages because you forgot to throw a few in your bag when you were packing. In travel destinations, basic first aid supplies tend to be overpriced, and it's not always convenient to hobble to a store post-injury in search of emergency supplies. Instead, make yourself a little first aid kit and keep it with your toiletries. You don't need anything complicated, just a few bandages, some antibiotic ointment (look for the individual-use packs), and maybe some moleskin if you have a tendency to injure yourself with your footwear.