We go through about a tub a week in our house. Use it instead of soured cream on top of chilli, mix it into soups, add it to pasta with pesto to make it more creamy, put it on top of enchilladas etc etc
I got it from Waitrose I think? Sure i've seen it in Tesco too. It's in a strange place, not where you would expect it to be as I had to search for it in Waitrose!
Frenchfancy - very interested - I used it in something last night in the end and as I stirred it into a sauce, like I might creme fraiche to thicken and soften out, it kind of curdled and went all lumpy. How do you stop that happening? It was very tasty, no problems there, but the texture once cooked was not so pleasant!