So, I was looking at the nerdly stuff and saw: "Bookbinding with Kevin Allen Jr" and Immediately regretted I won't be there, but it reminded me of a question. I was going through my supplies and realized I could find none of my glues, and since I historically used the empty container to remind me what I want, I have completely forgotten what I used to use as bookbinding glue. It wasn't actual binding paste because, honestly, Giant Pain In The Ass. I think it may have been a joint sealant of all things.
Anyway, I wanted to throw this question out to Kevin and any other peper nerds: What's your binding glue of choice?