Updated January 23, 2014
Preschoolers like to open things -- cabinet doors, toy chests, you name it. There are lots of places you don't want your child to access, and putting a lock on the door might be the way to keep him out.
Before slapping locks on all your cabinets, which can be costly, start by moving cleaning products, medications and other items you don't want toddlers to get into to higher cabinets out of kids' reach.
Never put a lock on a refrigerator, freezer, clothes dryer or cooler. These have limited air, and kids must be able to open them from the inside should they fancy them desirable hiding places. (Don't put it past them.)
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