I use trace and toile all the time to trace out all my pattern pieces toys, clothing the lot. I use it so much that I buy it by the roll. All these years I have never actually sewn on to it even though its main purpose it to be used to make toiles for garments which includes sewing them together. Last night I was cutting out a pattern and I thought I could fit a narrow piece in between 2 other pieces I had traced out and cut from the roll when I discovered the length I’d cut from the roll wasn’t long enough to for this piece. I didn’t want to waste cutting from the roll an entire length for something that was only about an 1 wide so using the scrap from the length I had cut with my other pattern pieces on it, I cut 2 narrower rectangles and I stitched them together to form a longer piece.
I was able to trace out my narrow piece except in the excitement of me cheering myself for being so frugal I started to trace on to the actual pattern piece and not on top of the trace and toile (silly silly) I released after about a couple of inches. Once the trace and toiled was placed on top and traced out I had remaining length leftover on either end so I cut that off and placed them in the scrap trace and toile zip lock bag I have to use on smaller projects.
I love working with trace and toile (just don’t place a hot iron on to it) and keep as much as my scraps as I can. Now that I know stitching pieces together works I will do this again with suitable scraps for simple straight forward pieces.