You're right, Bill. I've done that several times over the years. Usually, I'll buy the kit marked "Dayhiker" or "Emergency" first aid kit - the smallest and cheapest - which mostly has bandaids, gauze, and a few pills. I mostly buy it for the nylon pouch (yes, I could use a ziploc bag, but having a bright red or yellow pouch with "First Aid" prominently stamped on it could be useful if I had to tell someone to "go get my first aid kit in my lid pocket.")

I usually throw away the pills, which leaves plenty of room for my other items to it: Aleve, Advil, tweezers, a pair of folding scissors, water purification tablets, some safety pins, and patch kits for my tent and sleeping pad, and a piece of moleskin.

Oddly enough, I haven't used any of those items (except Aleve and Advil) in at least 5 years.

And, for the walk down memory lane, my original first aid kit was a metal or plastic (I forget which) band-aid box with other stuff added to it. Do bandaids even come in such boxes any more?