Any change to your normal routine can really throw a curveball at how you approach your day and can wreak havoc on your attempts to maintain a state of 'organised calm' in your life. Sometimes even the smallest change in circumstances requires some sort of adjustment to your routine.
But it's those significant life events that make the biggest impact, such as moving house, marriage, divorce, having children, children moving out, working from home, a new job, downsizing, renovating, illness or loss of a loved one. Without a doubt, these events will impact on how your home organisation, whether you had great systems set up beforehand or not.