I recently cut a bunch of 2 - 1/2" blocks only to realize I didn't need them. OK, what to do? NO tossing of blocks for sure. So I went in the house, got a sticky note, wrote 2 - 1/2" blocks and put them in a food saver bag. Sucked it down and sealed, the blocks will stay put, and be clean and ready for when I need them on a future project. Who says kitchen goodies aren't good for quilting?