If you are a runner, I’m about to change your life. My brother sent me this a few weeks ago and I’ve been freaking out about how awesome it is ever since. Walk Jog Run uses Google Maps so you can measure out your running course. It is surprisingly accurate. I measured out the 10 mile run I did a few weeks ago and it was right on. It also has a little thing at the bottom for you to enter your weight and your miles per hour to see how many calories you’ll burn. Love this thing. Now, go email it to everyone you know.