This app pops up a notification almost every day trying to sell something.

Great selection of cards without needing to run to the store. Take a cute photo, sign right on the app, spend three quid, and your significant other will be none the wiser how little effort you expended when a personalised card shows up in her or his mail.

The map is great and will help you find buildings. I wish I had had an app like this when I was a freshman -- I would have spent a lot less time running around campus!