Our Costco had pasteurized cider for $3.99 a gallon. We chucked five gallons into a carboy along with some yeast nutrients and US-05 beer yeast. fermented for three weeks and then kegged. So easy and tasty.
This isn't the world's best cider, but is still much better than any mass market stuff available. With five month old twins and DH finishing his dissertation, we haven't managed to brew anything more complicated lately.