I use this cable to charge my Kindle, HTC Desire, Nexus One and other devices that need a Micro USB cable from my PC. It comes with a little plastic clip around the wire which you can use to bundle it up so that it takes up very little space. This clip isn't shown in the picture here.
I take the existence of this important cable for granted. I have never taken the time out to appreciate it and thank it for what it does for me, but if it ever stops working, you can bet that I'll vent my frustration and rage at this inanimate object.