Q. OK, I followed your advice and switched to Gmail. It's great, but when do we get folders in Gmail?
A. Gmail already has something similar to folders: labels. The main difference between folders and labels is that you can add more labels to a message.
Q. Oh, I see, but I don't think it's very useful to add a message to more folders. I mean, labels.
A. You could create labels to categorize your mail and some of the messages will certainly fit in more than one category.
Q. It doesn't work. I created a label for "Invitations" and I added the label to one of my messages, but it's still there in the inbox.
A. That's because "inbox" is also a label and adding another label doesn't remove the other ones.
Q. So now I have to click on "Delete" to remove the message from my inbox, right?
A. No, to remove a message from the inbox, click on "Archive".
Q. I thought "Archive" compresses my messages to save space.
A. I'm sure that Google stores your email efficiently. Thanks for your help. Now I know how to use folders in Gmail. I select the message, click on "Archive" and then... Hey, wait a minute! My message has disappeared! You can still find it in "All Mail", one of the sections bellow Gmail's logo. "All Mail" includes all the messages, except those from the trash or flagged as spam.
That's too complicated! So when do we get folders in Gmail?
Google, Gmail, FAQ