I've developed a minimalist, customizable yet effective 3D-printable storage method for storing tupperware/food container lids.

Instead of tossing all your lids in a drawer, or laying them flat or precariously balanced stacks, put them in this bin separated by dividers, either by type, size, brand, or whatever works best for your situation! This particular design is meant to be printed in 3 parts: one part for the front section, one part for the back section, and one part for the dividers. You can print as many or as few dividers as you need; the included profile has a build plate with 4 on it. The parts will be a snug/tight fit: you may need to sand down some parts or delicately hammer the front and back sections into place.