Instead of yanking and plugging USB connectors, toggle the power with this short inline power switch.
Turn it on? Find the USB cable end, and plug it in.
Turn it off? Unplug it, drop cable, and immediately lose the end.
If you have a project that you need to cycle power to often, you'll wonder why the project just doesn't have a power switch of its own. This little power switch solves this problem by adding a nice little toggle switch in between your USB power source and your project. Keep in mind though that this switch does not connect data lines! It should be only used for power and ground.