Please, if you can fit what you want to say in the title, then do so and end it with EOM (end of message) so readers will know it is not necessary to open the message text. I found a couple of rules of MB ettiquette which apply here. I am copying these. They are not my words. And I am a big offender of the first one. Hope they are helpful. Opty

Communicate clearly
Write clearly when you compose a message. Review your message carefully before clicking Send; typos are confusing. Remember, if your message can be misunderstood, it will be.

Don't post meaningless messages
Posting messages that say nothing more than "Me too" is a quick way to irritate other members. If you agree with a posting, either enjoy your consent by yourself or reply with an informative comment about why you agree. Imagine how dull a board would get if it contained nothing but hundreds of "me too's."

Quote from the post you're replying to
Include a small section of text from the post you're replying to, so others will have a quick reminder of the topic.