ClosetMaid (Home Depot) organizer shelf locking wedge. SAVE THE LIFE OF YOUR WIFE!

thingiverse

The shelf hangars and shelves themselves on this closet organizer are highly dependent on gravity to stay together. That is fine until you accidentally lift something up too high and it all comes unhinged. This wedge keeps the arm from sliding up in the track far enough to come out and simultaneously keeps the wire shelf from being able to slide backwards and come out of its retaining hook. Drop one in every arm attachment point and you are much less likely to have an avalanche. Designed and printed in record time with my wife looking over my shoulder after taking the entire contents of a shelf to the top of her head, this solution features all the tricks I could think of for successful printing and installation right off the print bed. Print in the original orientation in the highest layer height you dare to enjoy a print time under 10 minutes per pair, so you can get back to doing the things you were actually supposed to be doing as soon as possible.