LEGO brick wall made out of Muji storage boxes. They have dividers for extra segregation, plus Muji has well fitting additional small boxes. : r/LegoStorage
Storage & Organizers | Home Organization | MUJI USA
Amazon.com: 無印良品 MUJI 44620816 Sturdy Polypropylene Storage Box, Mini, 5.8 gal (22 L), Approx. Width 15.6 x Depth 11.6 x Height 14.6 inches (39.5 x 29.5 x 37 cm) : Home & Kitchen
Home Storage | Storage Boxes with Lids | Storage Baskets for Shelves | Storage Boxes for Shelves | MUJI USA
STRONG PP STORAGE BOX Extra large 70 L | MUJI
Storage & Organizers | Home Organization | MUJI USA