In a pile on the floor, of course.

I can get sizable, durable, stackable plastic boxes for about $5 a pop. And indeed this is where I store my seasonal clothing in my closet. I could just as easily stack them in the corner of a room. How do I know? Because I stack a bunch of them in the corner of the kitchen for durable foodstuffs. (Bags of rice, flour, etc.)

I have used a clothes basket before. I only meant that if you are selling non-essential goods (strictly speaking), you can't conplain when they get resold by your buyer. And if you are selling essential goods (food, water, etc) you REALLY can't complain unless the person is upcharging, and tgen you can only be upset because they are harming people by charging for essential goods.