We've always encouraged digitally signing your portable gadgets so that—in the event you misplace your digital camera, for example—a good Samaritan has the opportunity to get it back to you. But if you're also doing the secure thing and placing a PIN or some other password on your locked phone (which would prevent access to your if-found file), Lifehacker Australia suggests adding a reward label to your mobile phone. It's a simple idea to be sure, but one well worth the effort. Either way, make sure you also know what to do when you lose your cell phone.
