Personally I try to send them out by the 20th of the month before so if they would like to have a show for that month it gives them plenty of time to book the show.

 

I send mine...

out by the 15 of each month that way it gives them plenty of time to get invites out etc if they want to book a party toward the beginning of the next month.

 

I'm with Deb. I usually send mine out the last evening of the month and update my website the next morning.