Our favorite water storage containers are these 55 gallon drums because you can store them in your house or outside in a shady area. They also come with the syphon, a water treatment and the seal caps.
Right now we found it on sale for 46% off the regular price.
Go here to look at it and see if you want to get one too:
Remember that you need a 2 week water supply for each person in your family. And for just drinking and cooking it is recommended you have 1 gallon a day. You will need more if you want to bathe, wash dishes, and wash dirty clothes.