What to do with all that cash flow?

[Joe Mazur]

I am getting about $200 a month from my first rental property.  I've finally reached the breakeven point on what I needed to recoup what I had reinvested for maintenance.  So now what do I do with all that cash each month?  Do I put the money into paying down the mortgage?  Reinvest it in other property?  Save it for when something breaks or is vacant?  How has this worked for you experts?  

Thanks!