What's the best adhesive plasters for first aid kits? I've found that so many are just plain rubbish and fall off after a few minutes. Op-Site is pretty good but it should be for the price - however, they are big and cumbersome and not suited for some cuts. Band-Aid stuff isn't too bad but they are badly affected by sweat or water. Me, I'm leaning towards the old Elastoplast roll ... gets wet through but it stays on. What do you use?