Duct tape diapers
Mike lovingly recalls when his daughter used to take her diapers off:
When I saw the double diaper trick listed to prevent leakage, it reminded me of one of my favorite low-tech diaper hacks! When my daughter was about 18 months old, she "discovered" her diaper. To our horror we walked into her room after her nap and found she had removed her messy diaper and was covered in...well, you get the idea. Our solution was simple. We just put a small piece of duct tape on the front of the diaper to cover the tabs. It prevented her from removing her diaper but was still easy enough for us to remove after nap.
[Wince alert. -- Ed.] One caveat: Just make sure the duct tape doesn't stick to any part of your baby's skin. If you think a band aid hurts when you rip it off -- yikes!