The one time in my life I had a walk-in closet I was 5-8 years old. I had maybe ten outfits and the rest was full of toys. I wish I could have that now (it was the size of our bedroom in our condo) - one whole wall would be cubbies with bags in them. Since my space is limited I don't keep the boxes. I have a drawer full of bags plus a space near my side of the bed for the one I'm using at the time, and if I want a new bag I make myself give one to charity to keep it to a total of six plus a couple evening bags.