With or without the art work.Another good way is to use a label

I was fine with it when it was quirky, filled with silly hippies and grunge sorts, and run by Bill Clinton from the 90s style liberals.

On the avery print your address and use a small clip art.Here is the art piece I have used with great success.

Wash, rinse, repeat.Postcards should be something that they will want to stick on their refrigerator door and keep, cute cartoon, message of happiness, vintage art, kittens, puppies, blah blah blah.

It's an art, not so much of a science but there is a degree of science required.

And yellow letters now come with choice of envelope color And don't forget envelope art And if using standards stamps consider a cancel on the stamp.  

And with a fine of up to $500 per violation, a liberal reading of the law could indicate each name used is a separate violation.

Even if you are self-managing, you need to factor in a management expense as if you had a property manager to come to a proper cashflow number.From experience, a liberal estimate of your expenses is (conservative here is 50%) 30% of rent for capex, management expenses, and repairs, that puts you at break even cashflow long term. 

Remember - marketing is more an ART than a SCIENCE

One of the nice things about math is it doesn't have to bend to any particular persuasion - liberal or conservative, religious or not, male or female, any dichotomy you want to come up with, math stays the same.