So for example, if I wanted to minimize stopping, I would pack a wrap type sandwich for easy hand holding. I use a tall coffee travel mug in a cupholder to hold trail mix for extra snacking. And I might pre "crack" some lids on some bottles then tighten them back down, so they're easier to open one handed. If you like cans, then you have a leg up already.

My most frequent solo trip is 500 miles to my old hometown. I usually make 1 stop midway to fill up the tank (even though I can get 400+ miles out of 1 tank), hit the restroom, stretch, maybe walk around a retail store just for fun, then back at it until home. But without a way to keep cold drinks, I would be stopping probably every 100 miles, lol.