I think I'm beginning to see the light
I'll wear a backpack when I want to run errands on the road bike. That way I won't be waddling around in bike shoes too much either.
I can always fall back on the Stumpjumper, which has a rack already in place. For that matter, we still haven't gotten rid of the Giant FCR. Maybe I'll just hang onto it for around town trips.
I seem to have read something about N+1