Use Lightning Process Builder to automatically update all child Contacts when the Account address is updated. Get the step by step instructions here.
Thanks for this helpful tutorial Riccardo Gambella.
Using Files Connect for Google Drive, you can seamlessly connect files stored in Google Drive to your Salesforce records. Link files to records, share in Chatter and @mention your colleagues. Take a look at this video to see it in action. Step by step instructions on how to configure this in your Salesforce org are here.
Thanks to Bash Din for this great tip.