Though the custom-built closet of my fantasies is built entirely out of fragrant, handsome, naturally moth-repelling (and unfortunately rather pricey) cedar, it'll be a long, long while-if ever-I can realize those dreams. In the meantime, I've settled for sprinkling cedar blocks here and there on my shelves and in drawers to keep my clothes smelling fresh and critter-free. However, I just discovered that there's a no-carpentry-required way to upgrade from the wooden blocks I've been using to something more sleek and substantial that even I can afford: cedar drawer liners.
On apartmenttherapy.com, I saw cedar sheets for the first time, which come in rolls that you can cut to fit in your drawers. Like oilcloth, cedar paper makes an attractive base for the interior of any shelf or drawer, only these are especially great for clothing with their mildew/moth/mustiness-fighting properties. I shopped around just now, and found you can buy a generous 6' long,10' wide roll here for less than $10.