Google Drive is Google's file sync app that lets you store all of your files online alongside your Google Docs documents, and keep them synced with all of your devices.
Mark duplicate creative files before the next team receives them.
You can review marked extra copies and their locations before handing a shared folder to another team.
Add downloadable reference videos to creative review items.
Your reviewers get a playable video on the request when the source offers a download. Your producer gets a clear reason when it doesn't.
Flag repeated assets before handing a batch to reviewers.
Spot repeated files before you review a team's batch. Your folder shows flagged copies, and a results file shows where their matches live.