I've been making more greek yogurt and riccotta lately. It's awesome, but we're left with a ton of whey which I've mostly been dumping down the sink. I tried drinking it (yuk) and putting it into smoothies (meh). Tried using it in place of buttermilk in pancakes but it seems too 'thin' - not enough milk proteins, i guess.
Other uses? I'm generating ~1-2 quarts/week.