If someone is making so much money in a van that they can stay in a hotel for air conditioning and tv, it is unlikely they will share that secret. The most I've stayed in a hotel was 3 nights in a month, and these days, I haven't been in a hotel in over a year. That being said, it can't hurt to have something like a checkinn card, or know where to find the savings for times like breakdowns and away-from-home rest breaks. I haven't had much luck with the checkinn card, but I have one just in case. It's good to learn how to make internet searches for places in the area you're staying.
Your brain adapts to finding shade in the summer. Cruising into any parking lot my brain is automatically scanning the direction of slope, the direction the sun is moving, the heavy traffic lanes, and shade. If riding with a non-over-the-road driver, I'm squirming in my seat as they drive towards "unsuitable" parking situations.
Your time would be better served in researching how to live in your vehicle as opposed to out of it. One thing you find me doing during peak uncomfortable weather is parking at a local library, bookstore or mall.
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