So you can’t find your cellphone. No problem. You just pick up another phone and call it so you can listen for the ring. (Ah-hah! It was wedged between two cushions on the couch!) But what if there is no other phone where you’re at? A new service, PhoneMyPhone.com, is there to help. Go to the website, enter your cell number, and they will call your phone instantly. The service is free.