In this week's installment of Programming By Stealth, Bart Busschots spends most of the time walking us carefully through each of the methods he used to solve the challenge from last time. He does a great job of reminding us of things we've learned, in some cases more than a year ago, and showing how they were applied for this particular problem. I'm quite proud of one little thing I discovered that Bart didn't know had been introduced in HTML 5. After he's done walking through the challenge, he introduces Bootstrap Spinners. Spinners are a visual indicator to the user that some operation is going on that will take some time and let them know that things aren't just broken.