If you've got a small child at home or the prospect of an intoxicated Goob visiting, you might want to pick up a free IKEA secure hardware kit. They're clearly designed for IKEA chests and drawers, but they're just simple L brackets that should work with most other lightweight furniture as well.
They have two kits to pick from, depending on the size of your furniture, however you can pick both of them if you have a ton of potential weapons furniture.
