About $20 every two months. The actual cut is a little less than that, but I was raised tipping $1-2, and I feel like a cheap-a$$ expecting $1 back, so I just give the guy a $20 and call it good. It's an old school barber shop with a cool environment, none of that 'modern salon' crap :)
I have cut my hair 1.5 times in quarantine. The .5 was a re-trimming of the top. It actually turned out pretty good, though I didn't do it too short, as a safety net. Now that I finally have a hand mirror to see the back of my head, it should go even better next time. However, I will probably never be able to texture my hair the way my barber does, and yet my hair is so not-fancy I can't quite tell the difference.
I still don't trust getting a hair cut at this point in the pandemic, but I feel bad for my barber :( . Likely I will go back there sometime, unless I somehow perfect how I cut my own hair.