Document it anyway! Although it might seem like a waste of time to write about something that will change, the fact is that all software is potentially throw-a

Document it anyway! Although it might seem like a waste of time to write about something that will change, the fact is that all software is potentially throw-away code. That's the "soft" in software - you can and should change it if it needs to change. If didn't document things that might change, you'll either never document or you will be loathe to change code that has been documented. Instead, just look at both the code and the documentation as a working sketch.