What do you think I should put on my postcards?

I need to do some farming and circle prospecting for specific buildings and be able to contact (not via another postcard) their owners. 

I've sent out some postcards to a D4D list so far, and found a few cash buyers.

He couldn't just throw it away like I do with all the letters and postcards I receive daily? 

@Walt Alexander,I don't think your list is large enough to just send letters or postcards and then wait. 

Work with a direct mailing service provider @Iliya Muzychuk to send letters, postcards.

No wholesaler is offering "top dollar fast sale cash price" despite what their yellow post cards say.

What would be considered a good post card layout?

Regarding the yellow letters, post cards, phone calls, forced voice mails (no preceding call) and so forth, I get multiple ones per week if not per day.

For all the postcards, letters, "ringless voicemail", SMS spam and virtual assistants I get calling me, I think I've had ONE real honest person call asking if I was selling, and even though I wasn't,  I talked to him like a normal person and gave some advice about cold calling.