In the book It's Here Somewhere by Alice Fulton and Pauline Hatch, the authors discuss simplifying the home. This strategy is discarding duplicate and worn out items. For example, they believe in having one set of measuring cups, one spatula, etc. I appreciate this idea, with the exception of preferring an extra set of measuring cups and spoons while cooking and baking. When preparing more than one dish, I'm too lazy to stop, wash, and reuse.
Fulton and Hatch state that simplifying the home will reduce clutter and confusion and creates order. And, of course, the basic rule of organizing is grouping like items together. A few years ago, while cleaning out garage cabinets I found five putty knives all in different places. This is one way that being unorganized costs money and time - you either don't realize you have a certain item or can't find an item you have, so you buy another one.