Easy Money Saving Idea

I saw this idea on facebook, and I am going to try it!
I really want to save up for a new computer, and this would give me close to the right amount!

Each week of the year to put the amount of money of that week. So week one, this week I would place $1 into my account, piggy bank under my bed etc. Week 2 would be $2 all the way to week 52 where you should have $1378.00!!

I think this would be awesome and still easy and affordable to double... week 1 = $2 week 52 =$104 which would total $2756!!

Do you have any great, easy money saving ideas for the 2013?
Trying to save for a special purchase?