Thanks guys.
Was already pushing it to get a taste of Yellowstone (wife-push), I won't do the Teton drive-by. Sounds like I should stop at Badlands to minimize driving there too. Makes the long day easier knowing the following day is shorter (and having it first). We are going the first week of Sept, I am hoping to beat the snow.
We were thinking of stopping by Devil's tower, will do.
Two drivers, wife would drive to give me a break, but I wont' be relaxing until she's done it a few times. (really heavy foot)
How do the kids do? 3 year old twins...they freak out no matter where they are, should be interesting!