Tracking recipe changes and experimentation
How do you track your changes to recipes and the results? I am beginning to compile quite the collection of printed recipe pages with handwritten calculations all over them. I'm also making substitutions, many of which aren't being recorded anywhere. How am I supposed to avoid bad results and reproduce good results if I'm not tracking all of this?
I have so far been rather surprised at the lack of existing solutions for this. Google is failing me, bigtime.
So what do *you* use?