Before cleaning out my closet I had no idea what was in it because you can fit anything and everything in my closet. Whenever I see something on how to organize your closet, they put everything in nice color-coded boxes (usually pastels), none of which are bigger then a breadbox. I consider that impossible and slightly stupid. Now I have in my closet 1 ceder chest, 1 ginormous (about 3 feet by 2 feet by 5 feet) box of old things from my childhood, a bunch of hangers with about 10 actually holding things, 3 girl scout cookie boxes filled with who-knows-what, 1 pad for a sleeping bag, 1 volley ball, and 1 giant purple exercise ball. I didn't touch the top shelf, so I can't honestly list all that in here. My closet is still much more then half empty. I love it.
And I went on an internet quest just to make sure and am pretty certain that my sister is wrong in insisting that "futon" is the same as "unwanted guest" in Japan.