Can't decide between shopping at Walmart vs. Amazon? We compare membership services, grocery delivery and their prices (and sales!) to help you decide.

Use these tips for how to shop for the deepest discounts during the first sale of the holiday shopping season Amazon's Prime Big Deal Days sales event takes place on Oct. 7 and 8. By Samantha B.

Be careful what you order, as Amazon no longer lets you hide, delete, or archive orders from your purchase history.