I commute 45 minutes to work and have started listening to videos on the train. I have a cool iphone app that is able to download youtube videos to my phone so I can save them and listen to them on my commute.

I know the best way to improve is to go out in the field, but I think a little supplemental audio on the train has helped.

Any recommendations for the best PUA videos or audio clips that I can listen to on the train?

Thanks!