Student salon + dental school was incredibly cheap. What other lesser known places offer cheap services !

I recently discovered student salons and student dental clinics.

I live in an expensive city, just getting the nape of my neck trimmed to maintain my pixie cut cost 50 bucks at a cheap barber. The aveda student salon just did it for 8$.
They have really long facials for 40$ too, I’m in awe.

Before this I got X-rays done and a cleaning at a dental school for 30$ total.

I didnt realize these things existed, I didn’t grow up with a frugal family. Are there any other places with students to get cheap services?