Before you pass out flyers, I suggest that you check with city hall. I’m a real estate broker also and about 5 years ago the various cities in my area made it illegal to pass out flyers of any kind.
As for business cards, I use them all the time. Especially, when I go to Vegas every 3 weeks to make my deposit.
In regards to placing an ad in the newspaper, I like the idea. But, I’m afraid to get the government on my back – they generally don’t like competition!