But, I have lots (!) of pictures in my head I'm working to get down on sketchbook pages. It's slow going, though.
I worked on a little journal for a several weeks before we left. Kind of a planner and sketchbook combo to record all our stops and plans, as well as a few pages just for sketches.
The first pages had our packing lists, itinerary and hotels/inns/camping reservations :
I did a page that showed what our planned route would be. That ended up getting changed a little bit, but we did see all the stops we had planned on seeing.
I also bought my first Hand Book sketchbook for the trip, and did a cover page before we left. I'll have a few of those pages next week.