Thanks for all the replies. I'm going through a lot of this but it's slow going. A lot of it is just random "tips and tricks" ... maybe I just haven't gotten to what I'm looking for yet.
At least in my case, what happens a lot is I see an image and say "shit I wish I knew how to do that". For example I'm looking at an image right now that a designer created, that needs a ton of changes. If I knew WTF I was doing I'm sure I could do it myself in 10 minutes. But no, I'm going to waste at least an hour or more going back and forth with the designer until it's finally right.
What would be awesome would be a site or service where you could submit an image, and a photoshop expert would show you on video how to re-create that image from scratch. I would pay for such a service.
Seriously, I bet I could find 10 images that cover all the Photoshop skills I want to learn. If I could see a pro create these 10 images from scratch on video, I'd be set. As it is I'm sure it would take dozens or hundreds of hours of pouring through books and tutorials to learn these X number of specific skills/tricks/tactics that I want to learn.
(BTW if any designers out there are up for it, I have this image sitting right in front of me if you're interested in doing this as a one-off thing. I can learn some new skillz and you can earn some cash. PM me!)