I'm just wondering if YYZ has a park and jet or Park and Fly program? I have seen them at many of the other airports.

This is a link to GTAA Parking info (onsite)
http://www.gtaa.com/Index.aspx?Sid=Node2/Node2.3/Node2.3.3&Tpl=1
You can also park at Park-N-Fly http://www.parknfly.ca/pnftor.htm