I was printing something that was pulling from my new dry boxes, and noticed that the dry box kept trying to pull off of the shelf I had them on. There are a dozen ways that I could have fixed this, but I decided to grab some scrap dunnage, spent a few minutes on my table saw, and throw a brace in the front of the shelf. It's not super pretty, but I'm planning on painting it Soon™, which will hopefully make it less obvious. In the meantime, it holds the boxes in place perfectly, which is all I could ask for something that cost me nothing and took 15 minutes from start to finish!