Up until a couple years ago, I used to do my taxes myself. I would just open Excel and start doing one line at a time. The value that goes on the form was the

Up until a couple years ago, I used to do my taxes myself. I would just open Excel and start doing one line at a time. The value that goes on the form was the left-most column, and cells to the right of that would be for additional values and calculations. Worksheets and schedules became additional sheets within the workbook. Any change to a value would automatically propagate through the entire thing.