If I drop them off at the main post office that handles bulk mail, they are sent the next day. We sort them by zip code and by street. Perhaps this speed this up. I think that Thursday (Thors Day) deliveries are best.
Do you send out your post cards directly or do you have a service send them out?
I get mine printed at
www.4over4.com and put address stickers on them here.
Every customer gets a thank you card and then an "ad" postcard promoting general service and guarantees, just in case they didn't read about them on their invoice. THese are sent right after services are performed. When dealing with new customers it adds to the value and reduces the potential for buyers remorse..
I am trying to mix things up with tri fold color flyers sent in the mail. It seems to pull "OK" but i am trying a couple of different ad approaches.
I have a few customers stick the postcards to their refrigerator with one of our magnets. That is kinda neat to see that they like you that much.