I haven't used this yet but you can copy an Etsy listing just not the images.
It might be helpful for those of you who have similar listings in your store.
http://etsyhacks.com/greasemonkey/copy_listing/From the site:
When you're viewing your own items, this script adds a link to create a new listing based on the content of the existing listing.
Note: this hack doesn't duplicate the photos associated with the listing. Doing that would be difficult. Maybe in a future update.
Privacy notice: When you go to copy a listing from the Your Etsy page (rather than the View Listing page), this hack gets information from the Etsy API by way of a service running on etsyhacks.com. It's not accessing or sharing any private data, but since the requests are shop-specific I could, if I were very, very bored, use the access logs to see which shops are using the hack. If that bothers you, please don't use this feature of the hack! Copying from the View Listing page gets all the listing information from the listing page itself, and so does not share any information with etsyhacks.com.