Not a question: So glad you covered global vs local so well!

That move with 'G' and then typing the axis letter twice really struck home with me. I have wondered why the second tap of the axis letter would change to some other weird orientation sometimes. I also didn't know that the object's local axis wouldn't be affected if rotating the object while only in edit mode. Thanks again for some great gold nuggets. This is really solidifying my foundational experience I already have had with blender for years now!