Post workout, the idea of chocolate milk isn't appealing to me (despite the fact that I'm a big fan of chocolate!).

Instead, I throw some CostCo whey protein in with 12 oz of orange juice, and a gram or two of L-glutamine if I've had a hard workout, and call it good. It's probably 1/3 the cost of Endurox, and doesn't make me gag (that stuff is nasty).