I'm thinking, my letter needs work and maybe I should do post cards since they are cheaper (but they have a lower response rate).  

there is a company that makes extra large sticky notes printed with your info like a postcard mailer that you can peel and stick on front door too

@Mike Hicks  The upset caller volume is much less than a Yellow Letter, it actually brings in the quality of calls that a postcard does except has a higher response rate.

You see the sellers say they got a 1" stack of mass produced post cards, but they called the student's handwritten letter.  

@Michael Quarles what postcard design seems to work best for you?

The goal is to send out educational material post cards which will result in higher response rate.Hope this get your ball rolling for the 2015 year.

The only reason I haven't used him, wish I had, was because my last order from Vista Print was something like 1000 postcards all the same. 

@Michael Quarles   I am starting with hand written letters to try and get the phone ringing and will transition  into mailing services of letters and postcards as I get busy and put systems in place.

Just make sure you test track everything I use postcards in Denver yellow letters in Little Rock it really just depends on the market

He will tell you the right criteria and you can choose from his letters or postcards.