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"Police are always wondering what you are doing," Discount Tiffany Key Rings said. He's been stopped enough times that he now doesn't have to think before he shows his GPS unit and launches into an explanation of the sport, which is a high-tech treasure hunt. Discount Tiffany Keys and thousands of other geocachers around the world today are celebrating the presidential order that made their sport possible. It was May 1, 2000, that President Bill Clinton ordered an end to the scrambling of the signals from navigation satellites. The scrambling stopped at midnight, and starting May 2, 2000, civilian Discount Tiffany Money Clips units used by motorists and hikers immediately became 10 times more precise. Instead of guiding GPS users to within a few football fields of a particular location, the devices could now take them to within 20 feet. On Discount Tiffany Necklaces, a computer consultant named Dave Ulmer hid a black bucket containing prizes such as a slingshot, videos and books in the woods southeast of Portland, Ore. He posted the location coordinates (45 degrees, 17.46 minutes north by 122 degrees, 24.8 minutes west) online. Within three days, several people saw Ulmer's post, hunted for the cache and posted descriptions of their adventures online. Then other people began hiding caches and posting the coordinates. A sport was born. In September 2000, a Web developer named Jeremy Irish created, which made it vastly easier for those interested in the hobby to post their caches and log their finds.