Label outgoing emails in Gmail when composing the mail
I star incoming messages in Gmail to keep track of which ones need replies.
I'd like to be able to do the same thing with sent messages. As I'm sending them, star or tag them so that I'll be able to view a list of them later, to make sure I got replies.
Is there a way to do this, or in general deal with sent messages better within Gmail, so that the conversation doesn't just disappear if the other person doesn't reply?