Hmm...I never thought of tipping my laser tech because I consider them more of a medical facility than a typical spa. I thought at a certain level of profession, employees would not take tips from customers. For example, in Las Vegas of all places, when I was checking in at the Bellagio, the front desk lady would not take my $20 tips!?! Maybe in my next hair laser session I'll ask if he always gets tips from customers.
Talking about Vegas, I'm not able to afford extravagant hotels like Bellagio anymore. The best I can do right now is Motel 6, eating Ramen noodles for dinner LOL!