Chrome: When you collaborate on a project, you may need to have documents approved by other team members. Workflows is an add-on for Google Docs that brings this feature to Google's online office suite. Google Docs has a commenting feature that is very helpful when editing documents, but Workflows takes things a step further. Install the add-on and you access it from the Add-ons > Workflows menu in Docs. You can use the add-ons to get simple approvals for new documents—whoever you invite to the workflow is able to approve or reject as they see fit.