Free Shipping for eCommerce – Good Idea or Not?

Marina Strauss of the globe and mail wrote a great article December on Canadian online shopping sites that are reacting to what their American counterparts are doing online..

That article can be read here: http://www.theglobeandmail.com/report-on-business/the-free-shipping-fray-makes-its-way-to-canada/article6003596/

Tell me your experiences with Free Shipping. Does your site offer it? What restrictions (if any) are there? Do you offer Free Shipping 12 months a year or is it seasonal? Did your site start out with Free Shipping or did you add that feature later? Why did you add it?

And most importantly, how has Free Shipping impacted your sales?