I’ll start by plugging Harvard’s free courses catalog as well as Udemy
Edit: Gonna add 2 more I remembered-
Blender - I wish I had more time to learn it, but I did start the infamous “Donut Tutorial” once!
Watch Cartoons Online - Lots of good older stuff!
LibreOffice
Free Office Suite which is excellent for personal use. If you are on mobile Collabora Office if you want an Android/iOS version
I’ve been using it for over a decade. Prior to that I used open office but it quickly became clear Openoffice couldn’t match the development of LibreOffice. There is no concrete reason to buy microsoft’s bloated ever changing garbage.
OnlyOffice is even better in several ways.
How so? I’ve been moving between the two for years.
I find it faster, more stable, and just generally FEELS better than LibreOffice. Which I’m sure is because it isn’t carrying 30 years of Java baggage with it from the Star office/OpenOffice.org days. And ive had better luck with document compatibility in some cases.
The only complaint ive heard about it is just a smaller feature set than LibreOffice. But it does everything I want it to do.
Both are great, though.