Go here. Get this. Seriously, install it and go to town.
I hadn't realized that there was something out there that could internally be so powerful but still let people do things like "right-click an item and say RemovePermanently".
It's holy hot-damn sweet. Anything that lets you do things like remove banners based on their size is just the ticket for the sites you go to.
The only drawback is that it's a after-the-fact removal. Meaning that there are times that you'll load a page and then items will disappear. But still that's not a big issue when you really think about it.
Oh and it lets you do things like export the various things you've "ripped" and save them on a disk or hand to a friend so they don't ever have to put up with some of the ads that we all have had to for a long time.