Like a lot of you - I try to follow Getting Things Done. When I switched to RTM, I started forwarding mail to RTM, to populate the lists I cared about, using Tags/List/Due.

Sometimes though, when I'm writing a mail, I *know* that I want a waiting for task. And since the RTM tags have to go at the TOP of your mail - that means the receiver would see those tags.

I fixed it like this:

1. Create an email signature line that has the items you care about. Mine starts with:

Tags:
List:
Due:
---

Start an email, and use that signature.
Put the body of your mail below the tags.

And here's the fun part. After you add your tags, select them (don't forget the ---), make the font 4 point, and then make the font color white.

Voila! Your recipient won't see the tags at the top of the mail, and you'll create a waiting for task without having to copy or forward!