I recently used some plastic water jugs, 99¢ with the water, brewed 2 gallons of spruce beer and waiting for a JAOM. Best part is, I don't have to clean them! However, glass will be cheaper in the long run. I recently bought some used carboys and they came with a 1G jug that looked like it might have contained "Frank's Red Hot" as it has RED HOT written all over it, try a restaurant.
I too couldn't bring myself to buy a jug for $5.99, I will eventually pick up a heavier PTE plastic jug from the grocery store with some kind of juice in it, maybe fo rthe first batch, I'll just add yeast to whatever juice I buy and see how it turns out.