As a big fan of all the magazines, books, articles, forums...blah, blah, blah... I found only one thing that falls in the supplemental category that trumps seat time. Well, at least it's been as important to me as I have learned. Being out with somebody who knows what is what and has learned a ton and is willing to share. For a young hunter, seat time is awesome, but most of them (us) don't know what they are looking at when they see it. They need someone to show them the outline of a bedded deer the first time so they can see it without help the next time. Same with deer behavior...if someone isn't telling you why a deer is or isn't doing something, then it's much harder to figure out what he will or won't do next. I've been fortunate to have some great hunters in my life to share their knowledge with me. While I am by no means the greatest hunter in the world, what I do know and have confidence in is the stuff that I learned through those who I have hunted with. All that other stuff is good, but it's gravy.