RSS (RDF Site Summary or Really Simple Syndication) It is in use a fair amount, but it is usually buried. Many people don’t know it exists and because of that I am afraid it will one day go away.
I find it a great simple way to stay up to date across multiple web sites the way I want to (on my terms, not theirs) By the way, it works on Lemmy to :)
Project yourself 20 years into the future. Imagine yourself saying this to present day you. Then act on that advice. Much of these suggestions can apply to anyone at almost any age.