My personal preference has always been receiving RSS updates as emails. I have a random server I run rss2email on, it has a list of feeds and generates an email every time a new item is posted.

That way I get local copies I can search (via my mailbox), and don't have to worry about maintaining state of all the feeds when I move computer. (i.e. Client on computer one might regard some feeds as new/unseen, even though I read them on my mobile.)

https://github.com/skx/rss2email