How to Write Good Code

You know, after years as a software developer, trying to explain that it is impossible to accurately estimate development times (hence the building in of extremely large safety margins - how long do you guess this subtask will take? OK, multiply by 3, because the only thing you know is that you are wrong, dead wrong, in your guess, or that something else will be hideously buggy and take forever to get right), and how you can either do it fast, or do it right, when I could just have let XKCD do it for me.

Good Code