Apple's Bluetooth wireless keyboard and Might Mouse are great accessories, ridding your desk of wires and freeing you to rearrange your desktop as you like. Unfortunately, they also eat batteries. Worse, if you don't pay close attention to your menu bar or go through an annoying series of clicks and windows to check their battery level, they'll drop dead unexpectedly.

To help avert that annoyance, Jack Starmer has put together a quick, clean and simple battery monitor widget called Mighty Monitor. Once it's installed, it makes monitoring your wireless accessory batteries as simple as pressing F12. To get it, follow the link, scroll down to the Download link, double-click the download zip file, and then double-click the unzipped widget to install it. Handy!