This is what's in my first aid kit Alcohol wipes A few gauze pads A few bandaids Maybe a butterfly closure Good waterproof tape Ibeprofen in a small tube Benadryl (at least 4) Key chain swiss army knife. Scissors and file are most useful Spain headlamp batteries Some duct tape Lighter Sometimes I'll add a sam splint and bigger tape if it's a longer ski/bike outing. Personally my philosophy is go as light as possible so you're more inclined to carry it.