So, what lessons have you learned the hard way since becoming a parent?

There is no shelf high enough to be unreachable. And apparently, I need locks on my medicine cabinets. Yesterday morning while I was going to the bathroom my children decided to clean out the medicine cabinet in their bathroom. Which wouldn't have been a big deal, since there's not much in it, but there was a bottle of nail polish I had forgotten about. So I got to spend about 45 minutes trying to clean it up. My kids are almost 5 and 2.5, and to be fair, my daughter did paint both her toes and her brother's toes before she got creative with the polish. Man, it's amazing how much they can do in the time it takes me to pee and brush my teeth!