I use to mess with rss and agree with Marco on the purpose of them. Then I found a better solution, just subscribe to some of the awesome curated newsletters out there that do all this for you. HN has one - http://hackernewsletter.com and Peter Cooper's tech focused ones (https://cooperpress.com/) keep you in the loop in a particular stack, plus a lot of others that I've seen.
Now I don't have to check anything these days, except my email, which of course I check everyday anyhow!