Thunderbird for feeds I want to see updates from eventually but don't care when, each feed goes into a separate folder and I just check them when I have time. B

Thunderbird for feeds I want to see updates from eventually but don't care when, each feed goes into a separate folder and I just check them when I have time. Biggest problem is when something changes in the feed format or something, and it re-downloads all messages. Livejournal for feeds I'd like to see the day they are updated. Biggest complaint is sometimes it's super laggy and won't update for a few days, then spam feed with all updates.