How you handle rss-feeds?

from my view rss-feeds are a underrated feature
its a easy way to stay tuned in topics you are interested in

i use rss feeds with ms outlook and love it

many of the elgg-user are not familar with rss
and most of them don't use outlook

i have no experience with other tools to manage rss
but i want users show how to handle rss with other programms then outlook

tell me in short words what is best practice using rss?