Each week, Jordan Calhoun and Meghan Walbert of Lifehacker brings in all-star guests to tackle the stuff that matters—like how to be happy, how to buy a TV, how to be less bad with money and how to tell if you’re dating a psychopath. Look, you're doing great, but quite frankly we think you can be a little better. All your friends do too. It's time for The Upgrade.