Colour scheming
It has recently been the subject of a small debate. Grey on grey. The colour scheme from hell?

I absolutely love this colour scheme (the one you are looking at, on this page, right now). This colour of grey, to me, best contrasts the black text. Even better than white. Not only that, it seems to make the text look more "clean" and "professional". I really just love the colour. (It's "#CCCCCC" if you're an HTML geek.)

This colour scheme isn't as good though. But still, you can't beat grey.