Amazon and see all the different models of water jugs they make from small 1 gallon jugs up to 8 gallon and larger. The best deal you can get is on the 7 gallon Aqua-Tainer.
Wal-Mart sells the Reliance 7 gallon Aqua-Tainer for around $12. Without having to pay shipping this is a great deal. These are durable, and made from food grade BPA free plastic. They're blue in color, come with an on/off spigot for easy access and will safely hold water for years. These are a great deal and I have quite a few of these stored up. Tap water comes out of the faucet treated and ready for long term storage. No need for bleach or other additives. If you want to give the gift of preparedness this holiday season these water jugs are a great way to do just that.