I take used or wrinkled gift tissue of all sizes and colors and put it through the paper shredder. I use this for filler in gift bags and “grass” in Easter candy baskets.
Sometimes I just mix up all the colors; other times I shred one color at a time so I can keep them separate.
While this isn’t a significant money-saver, I never spend even a buck or two on shredded gift bag filler, and I like knowing I’m recycling all the tissue paper that comes my way. Heidi