I've always considered it a point of pride to get an extra frame (or two!) from a roll of 35mm.
This obsession started when I used a Nikkormat FT-2 and manually fed the film. I was "poor" in those days and the frame or two seemed like a "rip off" since I had the film commercially developed.
Old habits never fully die. Nowadays, even with my F5 I manage to just feed out the leader enough to get 37 shots. The other day I think I grabbed (or half-grabbed) a 38th!
I was shooting Velvia - it will be interesting to see how Fujichrome/Dwayne's develops that last shot!