3 Always Update Your OS
Updating macOS to the latest version doesn’t just fix bugs and add new software features, it also affects how the MacBook operates – even on a physical level. Over time, those updates can improve how the MacBook uses power and runs software, making it more efficient… which means it will last longer (especially the battery). So don’t put off those updates unless you have a really good reason. Open the App Store on your Mac, then click Updates.