I'm sure the ancestors from the Shawnee side of my family used a lot more than I do today, but I still try to use more than just the prime cuts of meat.
I know a man that tans hides and give him the hide unless it's in bad shape, then I save some of it for hair for fly tying.
We also try to use some of the organ meat (heart & liver) for food. (but I'd advise moderation in consumption)
Some bones can be used for various applications, but I rarely save any of them unless it's for a specific project (better tools are available, and bone marrow would be questionable as food with the pollutants and diseases these days).
I even save those nasty old mud veins (those strips of muscle tissue located inside the body cavity running along the spine), and I sometimes share them with the rest of the family! (label them "mud vein" when I wrap & freeze them so they will still be there when I want them)
There are uses for more than I've mentioned (such as legs & hooves for a gun rack), but I seldom save them.
How much of the deer do you use???????