My mother owns a Montessori preschool, and was in need of a new website in order to keep up with the times. As any good son would do, I made her a website for Christmas which has turned into the information hub for the whole school. No more hoping that the paper forms you gave to the 3-year-old actually made it home to their parent; now everything can be found online.
When transitioning from a Windows PC to a Mac, the one thing that I missed was my live-updating desktop background using Rainmeter and a Photoshopped image of the famed Green Monster at Fenway Park (that I lovingly titled RainMonster). I decided to create a website that mimicked the functionality of my old desktop by converting it into a website.
My friend Sarah owns Mountain Base Yoga, which is a local studio that I attend on a weekly basis (it keeps me bendy!). When Sarah took over ownership of the studio, she wanted a website for the studio. And it just so happens that I do that sort of thing! So I built her a website with Drupal 7 that included a Commerce setup to allow users to purchase yoga class packages, automatically-renewing monthly passes, and gift certificates.
I created the Commissioner Tools website because I found myself spending more and more time writing weekly updates for my fantasy football league on the ESPN website. Once you've created an account on Commissioner Tools, it will scrape the data from your ESPN league and then use that information to build out data views on the teams in your league.
For example, there are historical standings to see which teams have performed well over the long run, and a Matchup Builder to compare two teams head-to-head over the years.