If you'd like to do more with Google Docs and Google Sheets, check out the free add-ons! These add-ons let you add features to your documents, new fonts, clip-art, organize information, insert graphs, live chat with collaborators, and more! I especially like the app for clipart and the app for different fonts. Here's some add-ons I found useful in Google Docs.
Here's a snapshot of some of the add-ons in Google Sheets.
To find Add-ons, click on the ADD-ONs menu at the top of the document screen. Then click GET ADD-ONs. A menu of add-ons will pop-up like pictured above. Browse through the add-ons. If you like one, click on + FREE. A window will pop-up letting you know what the add-on has access to. Click ACCEPT. The app will then be added to your Add-Ons file. When you want to use it, just click on the name and the app will open on the right side of the screen.