My nephew recently figured out how to open doors and is enthralled by it. My brother ran out and got door knob locks for “kid proofing” of the doors. I laughed at the prospect since they waited until the last minute. I was reminded though of how useful a gift these can be and that they are very inexpensive gift ideas. At some time, the home will require child proofing for the kid’s own safety as well as the mental sanity of the parents. These door knob locks are only $6.