OK, that may be a bit of an overstatement, but it's true about my scrapbooking paper since I got these trays. Over time I've probably tried every possible storage scheme, but this one seems to work. I have always stored my paper by color but more often upright in folders -- not so easy to see what's inside. With these trays it's quite easy to see what you have and get to what you want. And each tray holds quite a bit of paper. I put mine in two stacks of five trays each on a shelf in my crafts closet and that's working out great.