eBay Canada is offering 5cent insertion fees when you satisfy certain criteria regarding shipping.  The promotion ends Aug 14, 2008.  Here are the details:
 
When is it? Starting Wednesday, August 13, 2008 at 00:00:01 ET (12:00 AM plus one second) and ending Thursday, August 14, 2008 02:59:59 ET (02:59 AM plus 59 seconds).

Who is included? All Canadian resident users who list their items in Auction Format or Fixed Price on eBay.ca and specify shipping (Shipping costs have to be specified on the Sell Your Item form within the "Give buyers shipping details" section or the equivalent Turbo Lister, Selling Manager, Selling Manager Pro or any third party auction listing tool) will be eligible for the promotion. Items listed in two categories will receive the 5ยข promotional fee for each category.

What is excluded? Buy It Now upgrade, Motor Vehicles, Business and Industrial Capital Equipment, Store Inventory Format, Real Estate Auction Format listings and Real Estate Ad Format listings will not be included in this promotion. The promotional rate does not apply to listings revised during the promotional period. The promotional rate also does not apply to listings created during the promotion August 13, 2008, but scheduled to start after the promotion ends.


Click here to learn more
http://www.ebay.ca/promo/PROMO5C0813/