UsefulSaver displays CPU info, RAM info, disk activity, disk space, top 5 processes, battery life remaining, and how long the screensaver's been running. This screensaver also features the date and time, customizable quotes, and ScreenWash. ScreenWash is a feature that help prevent LCD burn-in.
After the screensaver has been on for a specified time (10 minutes by default), the screen goes black, then displays the date and time in 4 different colors for 1 minute each. Then the normal screensaver resumes and the cycle continues. Lots of colors options available, as well as font selection and size. For computers with multiple screens, a photo viewer is available to make use of the space.