According to the USPS, these changes, which will be implemented in two phases, will save the service an estimated $36 billion ...

While some changes will largely be behind-the-scenes, other changes – such as mail delivery times – will be more noticeable.

If you’ve ever eagerly anticipated a package, you may be familiar with a particularly heart-sinking phenomenon. It’s one that often occurs as you’re walking to the front door of your home.

Current express delivery is about 17% of total packages but about 35% of the revenue. Express packages are about a $100 billion per year.

Here's what to know about the changes to mail delivery, when they will take place and how they will affect Arizonans. The ...