I ran across this service last week from USPS while trying to track a missing package. You sign up for free and if it is available in your area you get an email that shows you images of what is coming in your mail box for that day. Letters and packages.
Some items are not available in image form, and it will state at the bottom of the email if that is the case.
Pretty cool for letting you know if something you are expecting is coming in the mail that day. Also I guess good for letting you know if you are getting all your mail for that day.
