Just in Case
The only time it is beneficial to bring something “just in case” is when you are packing a First Aid kit for a trip. For everything else, like clothes and shoes, there should be no room for items you might not need.
Paracetamol, ibuprofen, antiseptic spray, alcohol swabs, gauze, and band-aids are all basics that every traveler should have on hand. You’ll never regret being prepared for any eventuality while you’re away from home.