I use a mechanic's magnetic parts tray to store my (open) safety pins. actually, I use 2. One is about 3" in diameter and one is 6" (From Harbor Freight) There are occassional tangles, but not serious ones. I grab one pin from the top. Usually several come with it. I shake it and have a sprinkling of pins ready to use. Generally in a twin quilt I have one or 2 'bonded' pairs. If DH is handy, I give them to him to untangle, as it makes him feel useful, although I can do it myself.