PostalEASE is an online system used by USPS employees to manage their benefits, such as health insurance, life insurance, and Thrift Savings Plan (TSP). It simplifies the process of enrolling in or modifying these benefits, ensuring that employees can easily make changes to their coverage. PostalEASE is integrated with LiteBlue, the USPS employee portal, allowing workers to securely access and update their benefit information. The liteblue usps portal serves as a gateway to various USPS resources, including PostalEASE, where employees can efficiently manage their benefits and stay informed about their employment details.