We buy feed for our chickens and I'm always sad that it now comes in woven plastic sacs that I have to throw out. The feed company can't re-used them, I've asked, and I can't think of another use for them - we don't grow that many potatoes! I wish feed still came in cotton sacks, I would use them for everything in the poem (maybe excepting the parachute for the cat!) and quilting besides. Modern feed sacks are still sewn up with string, however, and I do save the string.
Jan