As much as I like booze, it isn't the best high I've found. The afterglow from sex is intense, but doesn't last long. A good post-workout endorphin buzz, though, is one of the best chemically induced buzzes that I know of. I was floating for about an hour after tonight's workout. I was gliding through the grocery store with a small smile on my face. It doesn't last as long as some things, and I haven't found a way to guarantee I get it. But when it works... damn, it's an incredible feeling.