Because cabinets and drawers are constructed differently, I often have to use multiple types of cabinet and drawer latches in the same home. Many clients who attempt to do it themselves find that stores only carry one type of latch, which are of questionable quality and might not work on their particular cabinetry.
One type of lock we use often is the magnetic cabinet lock, which provides maximum security for securing cabinets. I recommend these for use under kitchen sinks, in bathroom cabinets, and laundry rooms to keep dangerous chemicals away from curious little ones.