I think RSS is the greatest thing since sliced white bread, and it was killing me. I literally once spent an entire unemployed day reading what was in my reader. When I got to the end there was more, and I just kept rolling that rock up the hill. So that particular tool is wide open for abuse by me. "You can just skim the subject lines" never meant anything to me, it's all just so damned interesting.
My solution was to kill my reader, put a few "daily" bookmarks in my toolbar (this is one of them), and put a bunch of sites in an "often" folder which I'll browse when I have time. Which works better for me. Most people probably don't have this problem.