Yep, shut doors work here too......once my 3 are awake and dressed for the day, their windows get opened to give the tooms a good airing but the doors stay firmly closed till nap time or bed time.

And both the bathroom doors get closed so Charlie (aged 20m can't trash them.

And IF you do ever achieve some semblance of a tidy clean house......get the kids in the car quick so that all their energies can be directed in the park, rather than to messing your house up again, LOL!