I keep mine in my cedar chest, in a big ziplock bag. Though I prefer the smell of cedar, I'm not convinced it's a great preventative. I use mothballs we get from China. No chemicals. Nearly pure camphor. It still stinks, but not like chemical-laden mothballs available here, which are full of poison I presume.

Here's a link to the aforementioned Cinelli jersey. $235 and it's half acrylic!
http://ciclismototale.com/?product=j...inelli-classic