We flew to New Hampshire this summer and drove our motor home back to South Dakota.
The drive through New Hampshire, Vermont and New York State was the most beautiful scenery I have ever seen with trees on each side of the highway just takes your breathe away. I have included a few of the pictures we took along the way. The second picture is of Mt Washington which you can drive or they have guided tours. A little history about Mt Washington is the wind speeds they have, especially in the winter.
If you are going to drive through the Eastern States I would suggest purchasing an EZ Pass either online 14 days before your trip (as it takes this long to come in the mail) or picking it up at any of their locations. It really saves you time and money (about 33%) when traveling on the toll roads and it covers 17 states.
Indiana roads hold on to your hat if you are wearing one as the roads are extremely bumpy. Iowa when we drove through it was 11o degrees which was a tad bit hot, so make sure your air conditioner is ready to go.
The main items we really needed during our trip were a first aid kit, chairs and GPS.