Do you ever get an email from someone, roll your eyes and think "Oh it's him again". You know the type who never stops forwarding you crass jokes or life's teachings you never read. Email is by itself great. It's fast and easy but those very same qualities also make it easy for us to pass along stuff that simply intrude on other's routine. Add to it the spam issue that's going to be here for a while, email is no longer as enjoyable as it used to be. So when you're sending email, it's a good idea not to add to people's email distress. Here are 7 habits of a good email sender.