I second wallflower's recommendation: "total immersion" is amazing. I just wanted to point out that "supplementing" swimming techniques may not be a good idea.

I second wallflower's recommendation: "total immersion" is amazing. I just wanted to point out that "supplementing" swimming techniques may not be a good idea... once you get the basic habits wrong, it can be very hard to undo. (not to say YMCA is bad, I know nothing about it)