Is your e-mail one big image blob?
If you are involved with e-mail at all -- below is a link to a great quick read on five no-no's for designing e-mails. All too often I see e-mails relying solely on images to convey the message. Sometimes I even see that the entire e-mail is one honkin' huge image. Ugh! Not good.
Take a moment to read this article and start ensuring the time you are taking to send an e-mail results in someone being able to read it.
Enjoy!