So you buy a nice two shelf bookcase but it’s wobbly and you know it won’t hold much. I’ve recently gotten one and my solution was to put L-brackets on it. After installing about 8 of these brackets at the cojoining parts of the shelving, it is now completely stable and ready for use.
Pest problem? Use Diatomaceous earth. It’s like tiny glass for bugs that rips them apart.
Poisons kill better because they bring it back to the hive. They will also poison your dog, cat, hamster, squirrels, etc.