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!
In most eu countries the law requires businesses that give out food to also allow you to order free tap water. If youre in a city and dont want to spend money on a bottle of water, walk into mcdonalds and ask for free tap water. A lot of european countries also have strict laws about tap water so for example in france unless otherwise indicated with a warning, tap water is always potable.
Then there’s Germany where restaurants charge you 6€ for a jug of tap water.
Not true everywhere, actually never heard of it here (Germany and Austria).
But if you walk into a place and ask for a paper cup of tap water, a lot of workers are willing to give it to you, regardless of the laws.
Vienna has tap water straight from the mountains btw and it tastes amazing. Recommended.