I have severe dry eye and need to put in artificial tears ALOT. I am always fumbling in my pockets for the vials, dropping them out of my pockets, forgetting them, etc Yesterday I found a great solution. A "phone wrist wallet" which was designed for runners to carry a phone, credit card, etc but the one I found is perfect for eye drop vials. Don't know if its OK to give specifics for a products but I'm really happy to have found this helpful tool. Sprigs makes a very light weight one with two pockets. Duluth Traders sells it. I've wasted a lot of money losing vials of drops.