Matt Thommes is thinking about Grouping RSS feeds by priority and frequency:
Feeds should be organized by how "important" they are to you - rather than simply grouping them together because they discuss the same topics.
Right. This is an idea I've been playing with for a while, but I've never gotten right because of exactly the problem that Matt discusses in his post. My first few groups are feeds that I want to read when I don't have time to read everything. But then the rest of the groupings are by topic, and I tend to read them scattershot, depending on my interest (and time) at the moment.
Possibly a bigger problem for me is that I have subscribed to far too many blogs. It's probably fortunate that many of them don't have anything new to say that often.