Yup, I used to alternate flavors all the time too. I used a dripper for months and used to switch flavors in that, which got interesting because the flavors would blend in the change process, which I found really helped me with new DIY recipes.
These days I have a couple of all month vapes that I switch between. I do spike them with a drop or two of other flavorings once in a while for a bit of variety on days I feel like it. Mostly though I'm a boring vaper now when it comes to juices.