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!
A lot of places in the US will charge you for the cup or say they only offer bottled water for sale.
Ive definitely never, ever run into that. But I’m sure it happens.
Edit: I guess ive seen places that charged some nominal fee for the cup but it’s so rare
And even if they do give out free tap water … they might not mean lead-free.