One camera, 2 lenses.
I shoot with a compact medium format rangefinder (see avatar), so I don't need more than one camera since it is small like a 35mm, but produces great big negs. Quiet, fast, etc.
I never use the 65mm, so if I go anywhere with this camera, it will be with the 45 and the 100.
I don't like hauling around great piles of gear when I travel - and having always been a medium format guy, carrying around more than one camera has been a BIG deal.