how to clean an apple optical mouse.
It keeps skipping around. It's been in use for about 2 1/2 years.
iMac 24″, macOS 14.6
Here are the general directions for: How to clean your Apple products - Apple Support
From the footnote in the related “Peripherals” section additionally: “If your Magic Mouse or Magic Mouse 2 isn’t tracking properly, there might be a hair or other debris on the sensor lens. Turn the mouse over and inspect the sensor window using a bright light. If you see debris, use compressed air to gently clean the sensor window.”