To attach a folder to an Email, in Outlook, Hotmail, Gmail, Yahoo, or any other email service provider, you can use this trick.

It's time to clean up your inbox. Gmail has the option to create folders or "labels" so your emails go to the right place within your account.

Use folders in Gmail Labeling your emails is the number one best way to organize your inbox. It's like putting your emails into little file folders. You can even give each email multiple labels ...