UsedToronto.com

You can buy and sell used stuff in toronto and never have to pay to list the items.

http://www.usedtoronto.com/

There are also other sites of interest to post free in Toronto like: http://www.craigslist.org , http://www.khrido.com , http://www.kijiji.ca , http://www.thetorontostar.com and many more ...