If you’re been trying to get the perfect selfie, you’re probably doing it the hard way. Inevitably you’re going to end up with “selfie arm,” which can ruin a photo. Have you ever tried to use the keyless entry to your car but find that your signal isn’t strong enough? There’s a way to use your body as an antenna. We’re faced with technology every day, and there’s a good chance that you’re using it wrong. Luckily BuzzFeed is here to save the day with a few easy tricks to make your technology, and your life, just a little bit easier.