I would do the following by month.M1 - 1400 Small Text Post Cards 2 color first class postageM2 - 1400 yellow letters standard postage with cancelM3 - 1400 Large Text Post Cards 1 color Standard postageM4 - 1400 Professional Letters in a Hand Addressed Urgent Envelope.

What is the best strategy for someone new to start with the "mailing pieces": Post Cards, Yellow Letters, Zip Letters...?

I figured it was a good idea to start direct mail so I told my friend Michael Quarles what my goals were and he came up with a fantastic schedule...6,000 mailers per month, broken into groups of yellow letters, postcards, and professional letters....A little over 15k when prepaid 4 months...So I pulled the trigger.I haven't done any direct mail so I am excited to see the results.

If you're the only postcard they are getting, this would probably work.

And your out your time ,, post cards etc..

Should each mailing be a new letter, a combination of letters and post cards, or the same letter?

The price of a postcard is very deceiving.

Or is it better for that same owner who owns multiple properties to receive a letter/postcard for each one of his/her properties?

My last mailing was a white letter in an "urgent" envelope from bro Mike's website, (which landed me the flip), but this time the response rate was quite lackluster.Anyway I am looking to send a postcard to get the new year started but do not have much experience with this sort of mail piece.  

With very little functional expertise I bought a list from listsource.com, had two stay at home moms fill out 1500 postcards,  filled out names and addresses, and sent them out in bundles of 300-400 per week.