sanding blocks

sometimes a joint on a project needs to be touched up a little to make it perfect.  A piece of coarse sand paper adhered to a block of wood makes an excellent sanding block.  I used to buy rolled paper and use contact glue to stick it to the board.  Now, I find that using self adhesive paper that is used for floor sanding machines is much more economical and lasts much longer.  It comes in a variety of grits, is flat for easy storage and with the paper on back, the adhesive stays active for a long time.  Just use a utility knife to cut to size.