This is obsolete. The final version is here.
I'm thinking of renovating the Layer Combinations. Don't panic: LCs aren't as hairy as the layers themselves, and I would deploy the new scheme in the template for AC10, which will be so disruptive that a new LC arrangement wouldn't even get your attention.
In my back-of-envelope analysis, there a three main types of LCs, and then a couple oddballs. The three:
• Output. Used by publication views.
• Working. Where you spend most of your time.
• Special Tasks. Unusual LCs for doing a certain task once in a while. E.g., Site cutting, building stretching, elevations with just notes.
I would like these categories to be clearer in the LC list. The first draft is below the fold. The working LCs begin with numbers. The output LCs begin with the letter of their sheets. The specials begin with x. The oddballs: The binder LCs begin with z. Since they're not used until the very end, they have to be last.