Changing the nappy of a baby who can stand is an exercise in swift reflexes and hope. There are many variables to factor in, including those pesky onesie flaps that dangle in the danger zone, if you know what I mean.

Here’s a trick to make the procedure much easier: Start by securing the onesie over one of your child’s shoulders, using the crotch snaps.

If your baby has a nappy leak in the middle of the night, the traditional options have been to 1) replace the crib sheet with a clean one in the rare case your sleep-deprived brain has remembered to keep a spare, or 2) do laundry and sob. (You can't just drape any old blanket on the bare mattress and say "see ya in the morning" - it could be a choking hazard.)