Tutorial (1st edition)

Create a Gmail account
Create a Twitter account, and verify it
Go to TwitterCounter.com and click "Your twitter stats"
Scroll down and click "Add yourself. It's free."
A Twitter window will pop up, click "Allow"
That window will close itself and you'll be logged in, click the "Twittermail" tab
Copy your secret Twittermail email address
Turn off "Post an attached image to twitpic"
Find the "Twitter password" box and type it in
Turn "Send replies to my tweets to my email address" and click "Save settings"
Go back to Twitter and click "Settings" at the top, click the "Notices" tab
Make sure all options are off
Go to your Gmail account, click "Settings" at the top, click the "Forwarding and POP/IMAP" tab
Send your Google Voice invite to your Gmail address.
You'll get an email for Google Voice. Set up the account. Make sure to get a new Google number
Log in to Google Voice, click "Settings", click the "Voicemail and SMS" tab
Make sure "Forward SMS messages to my email" is on and click "Save Changes"