I have people at work saving their pots for me. Also can use milk jugs, plastic drink or water bottles, and all sorts of things. My DH buys a cup of coffee every day and saves the cups for me. Some people use toilet paper and paper towel rolls. I also like to use yogurt cups. a coworker buys those quart size yogurt cups and they are almost the same size as a gallon nursery pot! You can even make your own from newspaper. Do a search for making your own seed pots. The possibilities are endless!