Here’s an awesome idea from Kim at All Things Simple:
When traveling with children, anything can happen. Trust me, I have done it before. Airplane diaper blow outs. Random tantrums. Drenched clothing (mine and theirs). I have to plan ahead for my own personal sanity, so I love this tip! When packing for kids, save space and time by packing their clothing, the whole outfit, into separate zipper bags. That way, it’s ready when you need it while on the go. Also, you can tell which clothes are clean and keep them apart from the dirty clothes. Genius!
This may mean that you can pack for multiple kids in one bag and use it as a carry on. Yes.