Mixed up sink tips have been a problem of mine since I began spey fishing. I do my very best to pack only the essentials on the water and in the past have typically tossed a few tips in a plastic bag and hit the river for the day. After a few days of fishing they're a jumbled mess and its hard to tell the difference in sink rates just by looking at the tips. I've decided to get organized and use an old Rio leader wallet I had in place of the trusty plastic baggies. I have color coded my tips with thread coated in Aquaseal since the factory loop color differences are faint. A long length of thread for 12' tips and short lengths of thread for 10' tips. Pink for T14, blue for T11, and chartreuse for T8. I also fish some of the 5X5 Rio Mow tips. These get two short lengths of thread in the appropriate color. The red trim on a Rio tip wallet is easily labeled with a sharpie marker.