Yeah, after yours and Goatrider's posts, I'm thinking about getting some of the 4 gallon. Last summer, all I wanted was a way to store a lot of water in a small space. I would have bought a large water storage barrell if shipping wasn't so high. But now, I'm glad I didn't. The 7 gallon are fine, and I can distribute the containers around the house. The 4 gal would be good if I have to evacuate.