$500 a month for marketing, how should I spend it?

[Justin Morris]

I have $500 a month to spend on marketing, how should I spend it?? I know a diversified marketing strangely is the best but I can't do it all on $500. My plan is as follows please advise

100 Bandit 12x18 Single Sided Signs
1500 flyers(black n white very simple)
Then the rest I was going to use to rent a car to put up these signs since I live in NYC and will need to get out of the city to mu target areas. Is it better to skip the flyers and go $200 on DM Yellow Letter? This is not all the marketing I plan to do just the stuff that will cost money. What yields the highest amount of leads for people?