In college, I had a professor who said that when he was in college, he used to get ice cream after every exam. Treating himself after something stressful, he said, made the stressful thing not so bad.
Yesterday, I took the GRE. I was pretty nervous about it, so when it was all over, I decided to treat myself to lunch at Sportello, the fanciest lunch counter you'll ever see.
When I told my waitress why I was there, she brought me a glass of prosecco. When she brought me my fancy-pants latte, she also brought me a cupcake to take home. Her enthusiasm made the meal seem even more special, and now I'm pretty sure that I'm going there for all lunchtime celebrations from here on out.