This is crazy good. Something's that sound very useful yet I didn't think of them.
I don't really go all out this far when SE-ing but it's useful to know.

Thanks!

I Think many people Social Engineer without knowing. I do it very often. But not at work. Well maybe once an awhile. 

I also run a Forum just for Social Engineering If you'd like to check it out.

https://hmsef.net/