I voted for the request to "Auto forwarding rules based on Folder". While this would be great, if you add forwarding an email as an action in Filters, you would have the option of labeling forwarded emails or putting forwarded emails in a specific folder. I would really like the option of adding a label to forwarded emails. I forward emails from our financial institutions to my wife, and a label like "forward to wife", would help me to see that I am forward all of the appropriate emails.