The next time you lose your phone, before you start tearing your house apart in a panic-induced frenzy, try ICantFindMyPhone.com, a free service that will call your phone for you so you can locate it by ringtone. Sometimes the simplest solution is the best one.
Still can't find your phone? Well, the internet can't solve all of your problems (unfortunately). If you're the type to misplace things often, try phone insurance.