A shopper can usually find everything on his grocery list available online, but perishable dairy products, bread and fragile produce are items that should typically be bought in person. In most cases, buying groceries online is a convenience and is more expensive than shopping at the local supermarket.
Online retailers, such as Amazon, Netgrocer.com and Walmart, sell nonperishable grocery items, but items such as milk, sour cream and ice cream are not available for shipping. Peapod and similar business models provide smaller scale delivery options, making it possible to order fresh and frozen items online. Most shoppers still prefer buying easily damaged items, such as bread, eggs or tomatoes, in person at their local store.