This was my first attempt at PostIt art.  I found a pretty cheap 36×48 Foam Core board at Office Depot and drew a grid of 3″ squares.  I figured the grid would make it much easier to place the squares – especially if I didn’t want to build them in a specific order.  Unfortunatley for now, this is a pretty big, blank wall that kind of dwarfs the “art.” All in all it turned out pretty well and I learned that the 3″ squares work pretty well as a size but aesthetically, the 48×48 square is the way to go.