I have an old mainsail and a genoa. The genoa has some rips in it. I was pondering cutting them up and seeing what I can make. Hammocks maybe?
Buy the largest dia needles available for your machine. That will reduce skipped stitches. Increase the down pressure of your foot if using a home machine. Use upholstery thread if you can't get V92 thread locally. Or use sailrite.com. Note that sailcloth is generally heavy and while the tote bags don't have a lot of layers, adding the binding tape does add bulk and you would benefit from a walking foot machine.Do you need special needles for the sewing machine?