Part 1
You have before you a new e-mail message. Your mission: Address it properly. Enter a useful, descriptive subject line. And craft a message that's courteous and easy to read. What could be so hard about that? Just take a look at your in-box.

Part 2
How should I sign e-mail? Like TV news anchors, Netizens love signature sign-offs. Hippies use Peace; gen Y, C-ya L8R; acronym addicts, TTFN. (Ta-ta for now.) Some savvy users scorn cutesiness and simply sign their name or initials.