A big part of getting organized is determining the zones for each area you are working in and then only allowing those things that belong in that zone to live there. What do I mean by zones?
A zone is a specified part of a room, or area, that is designated for a certain activity, or a certain type of items. For instance, a home office may be divided into the working zone, the office supply zone, etc. A kitchen might be divided into the food prep zone, the cooking zone, etc.
When everyone understands the purpose, or activity that takes place in any given zone, it is much easier to stay organized because you realize what types of things do, or do not, belong in each zone.