Userscripts.org

It still is a bit problematic, because sites are not prepared for it, or still use table-based layout. But if you have basic pages like for example programming reference documentation, it works really nice.

Additional tasks:
- I plan to make it possible to selectively add div tags to everywhere you want, You you can define your own multi-colums-areas.

But hey, I will do it based on my need for it. And right now in's nearly all that I need. So if you like, grab the script and add it. It's very easy. :D