My brother works in publishing and came very close to ruining a 6 figure order of calendars because he put his personal birthday on them to test his proof reade

My brother works in publishing and came very close to ruining a 6 figure order of calendars because he put his personal birthday on them to test his proof readers. Don't break your code to remind yourself where to start. Instead, leave a failing unit test. Not only does it tell you were to start but you also told yourself what you were doing ShouldDoThisNext().