I'm currently reading Post Card Marketing in an Online World and so am considering post cards as well.Right now everything is so manual, which is totally doable since I'm slowly learning.  

Did someone mail you a postcard promising quick cash, etc?

Postcards? 

I just ran CL ads "I buy mobiles" I put up bandit signs outside parks I Had a CL alert set up to tell me whenever a mobile under $5k was for sale Talking to people in parks in your best bet Sending a post card mailing to parks you like My first one I bought he found ym CL ad- he had it listed with a realtor for $26,500.

I would send a six month campaign starting with small text Postcards, then Yellow Letters, followed by Large Text Postcards, then a professional letter, Greeting Card and finished with a ZipLetter.

For example, I spoke with a seller recently who sent me a picture of all the postcards, flyers and letters he had received in about 6 weeks and there were about 25 pieces laid out on his table.

When I get to 1000 mail pieces a month, I will probably start using a company like yellowletters or click2mail to send out post cards on a scheduled basis.  

I am planning on just using blank post cards and hand writing to make it a little more personal hoping to get a quick response.

She had bought some marketing materials and some lists and sent out a bunch of postcards in my market.  

There is a big competition, so I wouldn't even waste money on postcards.