Not a penny for the past 12 years.
Went to a proper 'salon' for the first time ever when based in Sydney, to be greeted at the door by an Asian man with what can only be described as a John Daly-style '80s mullet, dyed blonde. I should have known it wouldn't end well and it didn't; he made an absolute balls-up of a simple short back and sides. Straight back to the hostel, asked the other half to fix it up, no training. And she did such a good job, she's been my go-to ever since. Given the various styles I've had it over the years, more usually a mohawk, I'd now not trust it to anyone else unless under duress.
Before that, back in the distant fog of time, it was about £4!!