I know some places do free brake inspections. They are hard to find though as most places do have a fee. If you give us more info, it might help with understanding your situation. Year, make, mileage, and driving conditions to start.

Odds are you don't need to turn your rotors is they aren't warped (and you can tell if they are) You will feel them as you brake, if it shakes then its a good sign they are uneven.

I personally like to have my rotors turned. I got 60k miles out of the original factory brake pads. I could have left the rotors, but I figured what the hell, just do it all. The rotor can be purchased for $25 and I can atleast get three turns out of them. This is more of a personal preference.

Ashby