I tried that but I hated it. It makes pages load incorrectly cause sometimes tables and layouts rely on areas that have ads to load the pages correctly. I'd rather just see the ads and see the site the way the designer intended the site to be shown. If the site is obviously all ads I won't be back.
There are two different possibilities for what the OP is actually looking for. The first is he doesn't want to view anyone's ads...I don't think this is the case. The second, and more likely, is that he wants to disable ad serving temporarily on his own site. Adlogger can turn them off You can manually edit all your pages If you include your ad code separately (a good idea) then just change that one file