Chrome allows you to add things called extensions and apps which can help you speed up your every day tasks. And you can set Chrome up so multiple users can use the browser, so that you don't need to sign in/out of everything all of the time.
Here is a Google Presentation full of my favorite apps, extensions, and tips to make an educator's life a whole lot easier.
Read through it to learn how to capture screen shots, cite your sources, leave voice comments for students, and more.
If you have some of your own favorites that are not listed here, please share in the comments. I love learning about new extensions and apps.