I went to a design school, and one of my early classes was traditional drawing. Our professor would set up a still life, have us begin, and over the course of w

I went to a design school, and one of my early classes was traditional drawing. Our professor would set up a still life, have us begin, and over the course of weeks have "random" days where he would require us to erase everything on the sheet and start over, no matter how good you were doing or how far along you were. I think the lesson was heavy handed but I've always remembered it... The idea, I believe, was "get used to throwing away your work and trying new things, even when you don't want to". In the end I think desensitizing yourself to the idea of erasing work is a good practice. I have projects full of code that has been commented out for over a month, simply because I'm afraid I'll have to go back and see it again... Recalling this story, I may just as well delete it and rewrite it if needed. Chances are the rewrite will be cleaner.