I'm kind of like this. I use the term "all-day vape" now and then, but I really don't have one. I mean, I have things that are pleasant enough that I could vape it all day and be satisfied, but I really need variety.
I carry my vaporizer, three attys, a spare battery and three bottles of ejuice. Just swap out the atty when I want something new.
Though, I swap for more than just flavor. Sometimes (usually after eating) I want a nice kick in the throat. So I'll swap. In the morning, I like vaping something softer and less intense in terms of flavor.