I've noticed a small issue with my email client for quite some time now where composing a new email will have several blank lines by default.
It's not too much of an issue to simply delete them but hey, maybe no one had pointed this out before! So I filed a bug report only to get this response... basically it's not a bug, its a feature!
Mostly top to bottom. But sometimes I write the body of the email, then add all the plesentarys after.
Or even write the email, then work out who it's 'to' on the huge cc list...