Yellow letters

[Christine Waltz]

I'm getting ready to send a third mail piece to my list but I'm not sure what to mail or what to say.

My first two pieces were yellow letters. Should I send another yellow letter or postcard? If letter, does it need to be handwritten in red ink on yellow legal pad like first two? If postcard, is printed the norm?

What should the message be?

Thanks in advance for any help!