headline comes first,
say what only you can say,
always call out who you are looking for and who you are not,
reason why you are running a promotion,
damaging admission (know your flaws) if we can do this with humor,
show don't tell (copy),
tied benefits to status whenever possible, use urgency and scarcity when possible,
imply authority,
PS equals power sentence (always have them),
clear next step (make it stupid simple stupid),
third grade level copy