I sometimes think so much about what blend I'll smoke in which pipe, that I completely miss my smoking window. Or that I just simply don't feel like having a bowl anymore.
I don't really have an answer for you as I'm still very much an intermediate novice, like a sophomore. But what I have done is decided to pick one or 2 blends in each category and stick to those for the time being. If I feel like an aro, I only have 2 options. Same goes for the rest. If I find myself neglecting a particular blend in my "on-deck circle," I'll make a note of it in my journal, and probably won't order more of it. If I find myself continually coming back to a certain blend, this will be reflected in my journal, and I will most likely include it in a future purchase.
If I can smoke a blend for a week straight, it's likely to have found it's way as a staple in my rotation/cellar. If not, it's one of those blends that I'll come back to once in awhile to see if anything has changed.
But, forcing myself to pick among a handful of blends has really helped me out, rather than looking at everything I have to choose from