Mine perpetually shed. They are some exotic mix of Persian and Siamese (we have both in the feral colony out back and these are some that I trapped and tamed as kittens). They are black with a thick grey undercoat (Leopold looks like he has pantaloons, which I keep telling him is not terribly masculine -- he's neutered and doesn't care). I vacuum daily and still have fluff in the air.

Remember that scene in North and South when Margaret first walks into the cotton factory?

That's my house!