What's the best non-musical accessory you've ever bought? Not a bass or amp or effect or strings. Tuner or cable, maybe. Tools, straps, accessories, stands, all welcome. No bashing. Some of mine that come to mind: Dolly (aka hand truck): link Fan (aka air circulator): link Gig bag: link Stand: link I'd like to know yours, so I can go out and spend some more money on stuff. I need some non-musical GAS.