Go to Flylady.com and she will give you lots of ideas.
But please realize that these are teenagers, who, on the last day of their 12th year go to bed your darling little girl, but on their 13th birthday, wake up with a mind possessed by aliens. You have to be ring master to these critters and keep a mind trip on them all the time. Some time in the future they will grow up and become rational human beings whom you will love again.
I now love both my daughters, even though in their teens a lot of the time I could not stand either one, and often wished myself lost back in the hills of WV. Alone with a knife, ax and matches.