I get my milk from a local dairy:
That's the actual dairy. None of their cows have ever been given bovine growth hormone, and they're fed vegetarian feed (not all cows are). They bottle their milk in reusable plastic containers. I buy the milk from the local food co-op, pay a deposit on the initial bottle, and return the bottle when I go back to buy more milk.
At 95 cents a half gallon, skim milk packs a nutritive protein punch that's hard to beat for the price, at least in my house.