Who is the manufacturer for Glad's Odor Shield trash bags or Safeway's
scented trash bags? I've searched and searched and can't seem to find
anyone with low prices...even in China. Can anyone help?

I'm not too familiar with this site, but it had the cheapest and
highest quantity of bags that I could find. Its not directly from the
manufacturer but has bags for about 55 cents a piece. (270 for $14.99,
not sure about shipping.) Just though I'd try to help you out. :) 
-jay

http://www.cssauction.com/product/___838/glad_270ct_odor_shield_tall_kitchen_bags_-_13_gallon.html

If you're interested in contacting Glad ( a division of Clorox)
directly, you can email them with this link although I doubt they'd be
willing to sell you them at any sort of discount:

http://glad.consumerreply.com/Clorox/glad/faqs.nsf/WebContactUs?OpenForm
Phone (for Clorox Company) 510-271-7000

Just a friendly fellow answer center reader. :)  -Cooljay136