(I'm a 16 year old sophomore)
First, I filled out an online application which took about 30 minutes. After completing all of the information, I was instructed to fill out the second half, a "Skills Assessment", at one of their stores at my earliest convenience.
The next afternoon I stopped in at the store and told the cashier that I was there to complete a job application. She called the manager and I repeated why I was there. The manager asked if I was 18, and I explained that according to the application 16 was the minimum age for every department except for photos. She then seated me at a monitor behind the counter where I logged in to my active application using my SSN (if you don't have it memorized be sure to have it with you) and started the Skills Assessment.
The first half consisted of multiple choice "what would you do if..." questions. The second half was questions containing a picture of a price along with an assortment of bills and coins. The instructions said to find the correct change using the fewest bills and coins, and gave four options which read [Tens (#), Fives (#), Ones (#), Quarters (#), Dimes (#), Nickels (#), Pennies (#)] with different amounts for each option. The entire skills assessment took about 45 minutes to an hour.
As I was leaving the cashier told me to call back in a few days and confirm that the manager had received my application. A week later I called and asked for the manager, who told me that I should call back around 8 in the morning to speak to the manager that handled the hiring process.
When I did I spoke to the manager who asked my name and then my phone number, saying he would call in about half an hour. He called back 30-ish minutes later and very politely told me that he had looked over my application and that while right now he was looking for someone who was more available and could work days (I couldn't because of school), he would keep my application and call me if something opened up. I told him that in about a month I would be out of school and able to work days, and he said I should let him know when that changes.
Overall, this being my first job application, it was a very pleasant process. The system was well organized and the people I encountered were very friendly and polite. Though I did not get the job at this time, I hope to possibly work there this summer when I am available.