GNC has the 20 oz pre-mixed bottles of Isopure on sale this month, 6/$17.50. Just thatought I'd share.
Bridget
PS - sorry if it was already mentioned, I'm slacking in reading the messages lately.
Warning on Isopure: If hte bottles get too cold they will explode. Oddly so, the liquid evaporates. The small shards of glass are a pain to clean out of the fridge.....
