jQuery

I hate clutter on websites. There's nothing worse than having a cluttered up website, or some stupid carousel menu system just because it "looks good". Give me some feng shui and zen any day.

Simple works. Simple means NO clutter. NO bells. NO whistles.

And yet. Judicious use of the occasional visual treat can be permitted. Especially if it's focused on something that genuinely helps your user (and no, I don't mean showing a clock - NO ONE needs YOUR website to tell THEM the time).