Here’s a low cost, low weight “tool” I take on tour to help keep my chain, cogs and the like a bit cleaner while on the road. When my travel toothbrush starts getting a bit too frazzled for my dental care, it gets transferred to my tool kit. Costs about $2 and the handle keeps gunk out of my tool roll. It hits the magic mark of having dual use, albeit sequential dual use. I’ve yet to mix up the old for the new, but I’m thinking I should put some red tape around the one I’m using as a toothbrush so I don’t make a mistake in the dark at camp.