1. A disposable diaper, thrown into the clothes washer by a sleep deprived person (hint: not Paul), will come out clean and waterlogged, as big as a two year old's head. Science is amazing.
2. You can get your hair cut with your four month old, if you're okay with letting strangers hold him during the blow-drying session.
3. Babies know, within the minute, when it's the older sibling's naptime. That's the moment they choose to get up.