How old are your girls? I'd just leave it messy. They'll get tired of it after while when they realize mama is not gonna clean it up for them!

I raised 2 sons too....not QUITE as messy as girls it seems LOL! They just stink worse! LOL
And T2W is right, don't sweat it too much. They do grow up fast.
BTW, love that hard wood floor in their room! And they have good taste in CHOCOLATE!!!