USPS will email you images of what's in your mailbox
 

We've all done it. Take a few minutes to walk to the mailbox only to discover it's either empty or filled with junk that immediately goes in the trash. The US Postal Service is testing a new tool that will save you a trip if there's nothing interesti...

http://www.engadget.com/2015/12/07/u...rmed-delivery/