I identify with the part about commenting to yourself in the code, at least to yourself 2 years from now. Obviously the comments should be for anyone but it is a good work practice to comment on why you did something or how a piece of code relates to the overall program.

Chances are if you wrote it, you'll be fixing bugs for it so help yourself out. You won't have the context you currently have when you open that code up in a couple years, so put some context in the comments.