The only time they ever throw anything away is when it's really and truly broken, and then they make a big deal about it. They save up all their bent pins and broken sewing needles and once a year they do a whole memorial service for them, chanting and then sticking them into a block of tofu so they will have a nice soft place to rest. Jiko says that everything has a spirit, even if it is old and useless, and we must console and honor the things that have served us well.