Update: An updated list of stores that allow coupons to stack is available on this wiki page: http://www.buxr.com/wiki/coupo.....le_coupons
I think it would be helpful if we could compile a list of known online merchants that allow stacking coupons.
This should really be included in a deal submission with multiple codes, don't you think?
If you know of merchants that allow stacking, please share.
I plan on putting all the stores in a spreadsheet and making it accessible to all of us!