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.
I love our roomba, we got one that emptied itself so all I have to do is empty the bag once every month or so. Makes keeping the house tidy so much easier. It’s great for the dog too, we just set the roomba off when the house is empty and come back to clean carpets. I hate hoovering though so mileage may vary.