Advent Locker is an advent calendar treasure hunt set up by Tom Scott and Studio Creative Technologist Dan Williams. Every day between the 1 -24 of December they announce a code to get into an Amazon locker via twitter. The concept is simple, the first person to get to the locker with the code, wins the prize. It might be something simple like a Christmas decoration, a trinket, or some chocolate. But sometimes, it'll be something big: a toy, good books, or maybe even an iPod.

During the week the lockers are all London based, but after demand on twitter they decided to take it nationwide. This weekend the lockers were based in Manchester and Sheffield, so who knows where it will be next weekend.  

Want to play? Follow @adventlocker on Twitter so you know when the code is announced — and if someone gets there before you!

Check out their website for pictures of previous winners and their prizes here: http://www.adventlocker.com/

Advent locker has been sponsored by Event Handler's events for geeks, you can check out their Arduino and Design and Modelling workshops in London soon.