While traveling, have you ever lost your luggage? Did you have to wait days for your bag to arrive, and were distracted from your vacation or business conference, as a result of having to replace your essentials? This is not an uncommon problem: the U.S. Department of Transportation reports that an average of 10,000 bags are lost a day.

Travelers can now purchase a slimTRAK GPS device, a small, battery powered device which can be placed inside luggage. In the unfortunate event of a lost bag, travelers can immediately go online to locate and track it on slimTRAK’s secure internet site. In the era of Web-enabled mobile phones and PDAs, travelers can locate their luggage and immediately notify airline representatives of its location.

Other potential applications: hiding the device in a car, so you know where your cheating spouse is, for instance.

The slimTRAK device costs $470, and requires a one-time activation fee of $50, and an annual web access fee of $96.