- outside light
- bathroom fan
- I have a similar switch controlling an outdoor outlet located under the eave of my garage on one corner of my house. I use that outlet to plug in Christmas lights (starting point) each year. Then I turn the switch from manual to auto, and let them turn on/off as programmed until I take them down and return the switch to manual mode (usually in "off" position).
Pretend that you're at home, when you are not.
Have lights turn off/on automatically when you go to sleep or wake-up, cause you are lazy.