Flashzebra offers many handy strobe accessories. Together with my Honl accessories (such as the speedstraps, gels, snoot, grids and bounce cards) I have an outfit that is at the same time more professional, more convenient, and more portable.
I talked about the speedlite cables recently. My latest addition is these: small holders for Pocketwizards that allow you to tie them onto a light stand.
This means that your outfit looks more professional, and the antenna points up, but it also means that I no longer need to hang the PWs by the cable. This has always been annoying to me. Problem solved!
Easy: they screw onto the PW at the back and you tie them onto the light stand with a durable elastic. Much recommended.