Terry - It makes the closet smell nice but I don't notice it on the bagged kilt. Maybe because I had just pulled my snout out of the closet getting a kilt.

Steve - A great idea! Taking it one farther, I will use a lidded Tupperwear or Rubbermaid container that I have punched holes in the lid of. Sliding my kilts around in the closet occasionally one comes unclipped and hits the floor. Ergo my requirement to physically separate oil from kilt in all instances.

The Bag-O-Chips I bought and poked holes in while Kathy was making my Wildcat kilt. Then I learned that all cedars didn't repel moths equally well. And then I got the oil and anointed the chips.

I read Lavender works too. It's hard to find definitive independent scientific research on the cedars or lavenders effectiveness.
Regrettably sellers will make claims and not site how they know. It's a lot of hearsay and colloquial evidence.

Toxics like mothballs and Raid are proven effective, but as someone is going to have to wear or press these kilts sometime, it is not an option.