Belkin and Griffin Technology both make great headphone jack adapters for the iPhone, but they cost around $10 each. Roman discovered that you can use the headphone jack adapter that comes with the 1G iPod shuffle Sport Case (available on eBay for just 99 cents!) instead. Check it out in this short Mac|Life tip video.

REQUIREMENTS: QuickTime 7.0 or later

To download this video to add to iTunes for viewing on a video iPod, click here. (Note: To uncompress the file after downloading, double-click it.)