I learned some blacksmithing stuff, some fireproofing stuff, some welding stuff, some bow-making stuff, and other assorted stuff.
On a totally unrelated note, I've been thinking about what I want to do with my Youtube channel. Since I'm just starting out, I figure I'd ask my viewers, you patrons especially, what they'd like to see me do. As of right now I'm looking at making a helmet-patterning tutorial, an EVA foam axe tutorial, and possibly a muscle suit build tutorial. The muscle suit would likely be a small, 2- or 3-part series.