The changes hitting USPS this month, which took effect April 1, are just the first in a 10-year plan to save the agency $36 billion.

The changes hitting USPS this month are just the first in a 10-year plan to save the agency $36 billion. Here's how your mail could be affected.

The USPS is adjusting service standards for first-class mail, periodicals, marketing mail, and package services in an effort ...