You have a real fear of clutter invading your space. If you ever feel like your home is getting cluttered, you have a clear-out and decide what you're going to keep and what you're going to throw.
You're someone who can just walk off into the sunset: you don't get attached easily. If you were to set off to see the world tomorrow, you'd have no problems with excess baggage because you can leave things behind. You retain your freedom, and a great escape from the rat race always seems possible when you have an uncluttered life.