As the navigator and route planner, I also use MS Streets and Trips, 2011 version. I have to plan routes to visit kids between projects or routes to next project.
But planning for a 5-wk trip this Summer (our first looooong vacation) is really overwhelming. Mainly because I don't know our starting or ending point.
I'm having problems figuring where we even want to go besides Black Hills, SD. So far have a couple of rough drafts that we can fine tune in April once we know our starting point and know where we have to head back to.