TGIF! How's this for a weekend ritual. You're going to get together with your friends, play a drinking game, stay up late, and then impulse buy a bunch of stuff online. The next day, you'll feel bad, go for a nature hike, and educate yourself to revamp your spirits. These apps will help you do all of these things.
TED If you can think of anyone out there who's really doing groundbreaking work in science, technology, or practically any other field, chances are they've done a TED talk. Well, I suppose many of these talks are more about thinking than talking, but they'll get you thinking—while you do basically nothing, reclined on your couch watching the talks. Free
Panorama Pro There are about a million ways to stitch together a lot of pictures in Android, but this is the slickest panorama app I've ever seen. As with other panorama software, the app guides you step-by-step on where to were to take each picture so that your landscape lines up perfectly. The app assembles the image for you and then lets you share your 180-degree photo using your favorite social network. Easy. Free
Slice: Lifehacker Says, "The Slice webapp does a great job of tracking your packages, organizing your purchases, and giving you a complete view of your purchase history-along with any price drops you may be able to claim. Now, the service has unveiled its new Android app to give users with Android devices the ability to take Slice with them anywhere they go." Free