Ok. So I'm planning on taking a road trip to take a car out to california some time between late June and August. I will be driving a car out, leaving the car there, and flying back. My initial plans were to drive through Badlands, Yellowstone, Grand Canyon, then over to Yosemite and up through big sur and monterey bay to Napa valley, where I would be leaving the car. With a little time I would also head to reno and lake tahoe. I would like to spend a couple of days in the Napa valley are with friends and family. The more I looked, the more time it looks like the planned trip will take. At this point I'm considering skipping badlands and Yellowstone (for drive time constraints) and taking a route through the Colorado Rockies, then to the grand canyon, then las vegas, then to Yosemite and using whatever time I have left to see big sur, reno/lake tahoe, and whatever else in Cali.
What are some things I really shouldn't miss on this trip? I'm a semi-professional photographer and having some great pictures along the way counts for a lot to me for both memories and income. There doesn't seem to be a lot I'd like to see between here and Colorado, so I'm looking to make the most of the trip from there on out. What are some suggestions for things I don't want to miss along this trip? What do I need to consider along the way? Any tips would be greatly appreciated. And if I didn't ask it, but you think I need to know, feel free to let me know.