Defining the purpose of each room is a powerful tool for banishing clutter and getting organised. You'll know exactly where everything should go and get rid of any "catch-all" spots that turn into piles of clutter.
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Start by thinking back to kindergarden when your classroom was divided into activity zones (backpack area, arts and crafts station, and so on). Do the same and draw out the activity zones for each of your rooms. Don't try to fit too many activities into each room -- aim for three to five to avoid overwhelming the space.
Even if you have a room with multiple purposes (such as your living room), you can organise what belongs in it by defining activity zones (talking with friends or family, watching TV, work out space). Limit the items in each zone by what you need for the activity and remove anything that doesn't fit. You may even find that having designated zones for certain parts of your routine (like waking up) helps you get through your day more smoothly. For more details on this method and how to best make it fit your lifestyle, check out the full post linked below.