A few weeks ago, my youngest turned 13. Our first teenager. I was discussing with a group how many teenagers we’d one day have in the house at one time (6, Lord help us). It reminded me of a tool I had built several years ago. The tool allowed me to see the ages of each of my kids on a timeline and then slide the whole group along to see what their relative ages are. I dusted it off and added some extra features to make possible for anyone to load their own children. You can load in your kids and see what combinations you’re going to be dealing with as they grow up. You can also click the “Load Demo Data” button to roughly see our situation.