If your cabinets are loose because the screws have stripped or whatever, jam as many toothpicks as you can into the hole, break off the toothpicks and screw the cabinets back into place. The toothpicks are soft enough to allow the screw to get back into the hole, but hard enough to give the screw some stability. Trick is valuable with any loose screw. I just used it for a flag holder in brick on my house. You're welcome.