All those lovely boxes and caddies and drawer inserts and trays and baskets!
Why spend more money on products to put things in, when you don’t even use the things? Have you ever forgotten what’s in a box? Unless it’s tax info, you probably don’t need to keep it.
Try to avoid throwing out useful containers or buying more until you’ve finished de-cluttering. You’ll be surprised how many you can reuse. Once you’re happy with the amount of things you have left, pop out and find the perfect thing, but only if you need to. You might find you need far fewer than you first thought.