HTML optimisation

It astounds me how many nested <div>s some sites use in order to get the layout they want.

Less <div>s, of course, mean faster loading times and easier css-ability (thus making it easier to make alternate stylesheets or to redesign the site).

I, personally, use as few <div>s as possible, and only when the <div> is visible, either directly with a border or background or indirectly where it can be seen to alter the text flow.

Discus.