Sweet! I've been unknowingly following your not-falling-behind-Carl strategy for a while and occasionally extolled virtues of 2-, then 3x listening in places here (I still only do 1.5x for fiction books, as I get more enjoyment that way). I've recently realized I've listened to more than 500 books over the years.

Thanks for sharing your list. I should be doing something similar but need to improve my organizational skills first :)