This depends on what you are trying to store. Simple household storage items can be purchased from various department stores and home improvement stores. Often, shipping companies will sell older cargo containers that can no longer be used to ship freight worldwide.
Breast milk storage containers can be purchased at any local convenience store such as Wal-Mart or Target. They can be purchased in reusable hard plastic, or bags.
Storage bins or storage containers for kids can be purchased from places like DIY shops including Homebase and B and Q. They can also be purchased from Amazon.
Cargo containers can be purchased through Midwest Storage Container, Container Sales, Cargo Storage Containers, USA Containers and Power Sport Superstore.
Home storage containers can be purchased from all good homeware stores. Try stores such as Ikea. Alternatively, visit webpages such as Amazon or Ebay.
Small food storage containers can be purchased at most local retail stores, such as Walmart, Target, Costco, etc. They can even be found at local dollar or drug stores (Walgreens, CVS), and in online stores (Amazon and Ebay).
If one wishes to purchase plastic cereal storage containers there are a variety of options available. These containers can be purchased from Tupperware but are also available for purchase from sites such as Amazon, eBay and Walmart.
There are a variety of choices that are available online for storage containers. OXO is one of the leading manufacturers of storage containers and they have wide variety of containers that are specifically made for the bathroom.
Good storage containers are built in a manufacturing plant.
There are many places where one can purchase plastic storage containers. For example, just in the town where I am located I know retailers such as Dollar General, Wal-Mart, and Sears sell these containers. You could also buy them online from these places and many more.
Strong storage containers can be found from many places. Some of the best places to find strong storage containers are construction companies or retail stores.
At the end of each 10 year cycle the storage containers are actually sold for scrap metal. You buy these containers from a shipping yard for about 1000 dollars.
Waterproof storage containers are typically made out of plastic or coated with a waterproof material. A container that is recommended is the Rubbermaid waterproof storage box.