As you (or Automatic Ordering) place orders on Amazon or other retailers many addresses will accumulate in your "Address Book". This isn't a problem for most buyers, but for large buyers, it can be. For example, Amazon may not let you add any addresses when doing a return, and return labels may even show the wrong address. Ideally, it's nice to have a clean empty address book over one with thousands of names. Walmart will not allow you to place new orders after you have 300 addresses in your address book.
PriceYak will now automatically clear addresses from your address book with each order. Simply check this box in your Advanced AutoOrdering settings: