cheap haircut in the Slope/GWH?

I'm looking for a place to get an inexpensive, yet decent, haircut in the South Slope/Greenwood Heights area. I'm female, but my hair is pretty low-maintenance -- just long layers falling below the shoulder, nothing fancy. I just want to get a trim and maintain the layers. Anyone know a place where I can get such a cut for $40 or less?

Vespa Salon on 7th Ave btwn 16th/15th.

South Slopie-ish, but Sergio, Shlome and Eileen are the best.

Will be there tomorrow at 5:30 pm for a buzz!

(especially in this heat!)