I just buy the huge tubs of plain Fage (the full fat stuff) and add fruit and honey as I see fit. Not as portable, sure, but I can spoon it into a container and take it with me. (It's also not as likely to get stolen out of the communal fridge.)

I can never find the big containers of full-fat Fage. It's all 2% or 0. My Fry's carries the small containers, but sporadically and I get two to three smoothies out of those. I have to make a trip to Whole Foods on the other side of town to get them. (On the other hand, the one near me just opened up again after being closed for a year for a remodel. I'll see if it's there.)