Speakers for your Practice Room

If your practice space is away from your computer, but you do have your portable music device handy (iPhone, iPod, Droid, etc.), a cheap way to amplify your music (when you don't want to use headphones) is to use computer speakers. Most people (I sure do) have old sets of self-powered computer speakers (they have a power supply to plug into the wall) not being used. These speakers commonly use an 1/8" stereo plug, which is the same as what your mobile device uses. So... computer speakers + mobile device = stereo system for your practice room!