Are you the kind of person who loves getting wake-up calls when you stay at hotels, and wish you could bring that experience into your everyday life? Now there’s an app for that: Wakie is a free mobile app that brings together a social network of friendly strangers from all over the world to give each other wake up calls. It’s a great system; in the morning it’s easy to hit a snooze button every nine minutes until you’re late for work, but suddenly speaking with a kind person you don’t know really motivates you to become alert so you can speak with them at least somewhat intelligibly.