Resources
Sam's organizing recommendations from Amazon:
Also, search on Amazon for baskets and containers: there are opaque, clear, with and without lids, all sizes, etc.
Sam's recommendations at IKEA:
Billy Bookcase (other sizes)
https://www.ikea.com/us/en/p/billy-bookcase-white-00263850/
https://www.ikea.com/us/en/p/billy-bookcase-white-50263838/
Billy Extra Shelf
https://www.ikea.com/us/en/p/billy-extra-shelf-white-20265301/
Billy Height Extension
https://www.ikea.com/us/en/p/billy-height-extension-unit-white-40263853/
Råskog Cart
https://www.ikea.com/us/en/p/raskog-utility-cart-white-20382932/#content
Råshult Cart (smaller)
https://www.ikea.com/us/en/p/rashult-utility-cart-white-20463056/
Jonaxel Storage Drawers - Frame
https://www.ikea.com/us/en/p/jonaxel-storage-combination-white-s09297488/
Jonaxel Top
https://www.ikea.com/us/en/p/jonaxel-top-shelf-for-frame-white-20419959/
Jonaxel Drawers
https://www.ikea.com/us/en/p/jonaxel-mesh-basket-white-20419964/
https://www.ikea.com/us/en/p/jonaxel-wire-basket-white-40419963/
Vadholma Kitchen Island with storage and hanging - cutting table
https://www.ikea.com/us/en/p/vadholma-kitchen-island-with-rack-black-oak-s59276228/
Förhöja Butcher Block (use 2 to make a cutting table)
https://www.ikea.com/us/en/p/foerhoeja-kitchen-cart-birch-80035920/
Övning utility Cart
https://www.ikea.com/us/en/p/oevning-utility-cart-white-gray-green-50517005/
Skådis Pegboard (other sizes and lots of accessories)
https://www.ikea.com/us/en/p/skadis-pegboard-white-10321618/
Alex Drawers (other sizes)
https://www.ikea.com/us/en/p/alex-drawer-unit-on-casters-white-80485423/
And IKEA has too many tubs, baskets, and bins to list - search on the site for "storage container"
Sam's recommendations from the Container Store:
I could recommend most of the store (especially for tubs, bins, and drawer organization), but my favorite "storage expander" solution is this one - fits over a door, and has multiple bin options: