I pin pieces of scrap paper marked with letters and numbers on the pieces and stack them up. I chain piece, press and place the sections back in order on the cutting table. I re-label sections as necessary to keep the order. I know that it takes a bit more time to do the labels but it sure cuts down on the frog stitching (ripping). I keep a little box nearby with paper squares that I cut from random things that come out of the printer-like all of those pages that have three unnecessary lines of text printed on them. I do not save labels because it takes to long to try to organize them.