How many times have you been grilling for the people only to run out of gas before the meat is done? Very few? Maybe, but how much did it suck those few times? The $49.99 Refuel from Quirky will make sure it never happens again. This crafty little device lets you know how much fuel is in the tank and sends an alert to an app on your phone when you’re getting low. It’s so discrete, you can answer with a knowing nod and wink the next time someone asks you if there is enough gas to get it done.