I added this question about hats after I had it come up many times since I did the Konmari method. Hats are challenging to store - much like belts and scarves. To store hats using the KonMari method: 1. Sort and donate any hats that you do not want to hold in your space. 2. Lay out the remaining hats in the same space so you can see them all. 3. Sort them based on seasons (Summer/Winter) 4. Use clear boxes or paper hat boxes to store the ones that require shape 5. Winter hats can be stored in an airtight plastic container together. 6. Consider sorting your hats and storing based on family member as well (kids hats all in one bin)