I applied online, got a call about a week later, and was scheduled for a math test. It was about 20-30 questions-- basic math, but on a larger scale. It will look intimidating at first, but if you have experience counting cash, or worked in a cash office, you should be okay. Just brush up on your basic math skills (4-digit adding, subtracting, multiplication, word problems, decimals, etc.).
I passed the test in about 20 minutes, and they scheduled me for an interview.
The interviewer was energetic, fun, and helped ease my nervousness. He asked simple questions about my experience and certain supervisory situations, and how I handled them. Just think back on your prior accomplishments and answer them as best as you can. Be positive and smart, and let it be known that you can handle the hard work, while making customer service a priority, that's very very important to QT. Fast and friendly customer service! They like hiring the best, so be sure to express that in your demeanor and presentation.