We recently child proofed all of our cabinets and drawers. Originally we did not want to drill holes into our cabinets but our ever curious toddler forced us to do it.
Before putting our house on lock down, Ozzie loved to take something from one drawer and replace it with something else; typically one of his toys or something that did not belong there. I would often open a kitchen drawer to find the item I needed missing and in its place a gift from Ozzie. See exhibit A below, plastic bags askew, sandwich bags missing and Felipe & Turner (Disney's Handy Manny tools) in their place.