The way homeowners use their drawers is receiving a geometric shakeup with a new line of modular cabinet-drawer inserts from German kitchen products maker bulthaup. The b3 interior wood-and-stainless-steel system features V-shaped channels and accompanying dividers, utensil inserts, knife blocks, boxes, trays, and functional liners that allow users to build a customized organizational system. The inserts are fitted to slide along the channel, allowing adjustment for a range of kitchen products including dividers, utensil inserts, knife blocks, boxes, trays, and functional liners. The channel system is available in walnut, oak, stainless steel, or synthetic composite channels. Bulthaup, www.bulthaup.com; 973.226.5390.