After a long evening installing childproof latches on the cabinets beneath the kitchen sink (where the trash can is kept), I didn't have the energy or interest to install them on any other cabinets. We had removed all of the chemicals to the locked back hall anyway, so latching the other cabinets would just prevent our little one from pulling pots, pans, and other cooking supplies out to the floor.
I hung kitchen towels over the cabinet doors so the knobs are hidden and this has prevented him from opening the cabinets. The cabinets are totally openable, but without the tempting knobs they're just not that interesting.
Meghan's hack reminds us that childproofing doesn't have to be an all-or-nothing proposition. Different kids are attracted to different things. Some are climbers, some are bookshelf-destroyers, some are cabinet openers, some are button-pushers and knob-turners. It's good for all involved to focus your energy on the dangerous stuff (chemicals, sharp and heavy objects, breakables, electricity, heat, etc.), but then pick and choose about the inconveniences.
Agree? Disagree? Did your childproofing standards change when you had more than one child?