Freed up two shelves of space by folding all my plastic grocery bags
I wish I had taken a before picture. Both of these shelves used to be full of crumpled plastic bags. Now all the bags are in tight t-shirt style folded squares in a leftover tissue box.
This was one of the most insane recommendation Marie Kondo made in one of her books, and I was horrified even hearing the suggestion. But now that I've tried folding all my plastic bags, the space saved is really nice. Though now I feel like a crazy person, lol.