I am looking for advice on how to plan a cross country road trip in August. I just graduated college and I am hoping to see some more of America, as I have never been west of the Mississippi. The rough plan now is to start in the DC area. Go to Michigan in a day, stay with family. Head up the mitten, across the Upper Peninsula, see the Badlands and Mt. Rushmore in S. Dakota. From there make our way to Seattle, WA (our final destination). The return I am hoping to go south, see the Grand Canyon and eventually stop in Chicago before making a last day back to Maryland. My girlfriend and I have about 20 days to spend. There is a lot in between and I am looking for advice on places to see, stay, eat. Any advice is welcome. Thanks.