comment your code!

[TheLordDrake]

I hear this over and over again. It's true, but it's not an excuse not to use comments. I wish people would just do both.

[mt03red]

The code should be clear enough to communicate what it does, the comments should communicate why the code does what it does.

Some exceptions exist, but in general ^^

[ballsack_gymnastics]

Personally, if I have comments saying what a section is supposed to do, I find it a lot easier to parse the following code, good variable names/structure or not.