In keeping with Blake Batson’s call to suggest good ideas for others to pass off as their own (a concept, I should add, that I totally came up with), I give you hrmsmarttrip.ca. You can read more details here.
It’s not a big concept, and it won’t solve the city’s transportation problems. But it also costs next to nothing to set up, next to nothing to run, and it might actually get some people to start sharing rides. That sounds like a winner to me.
(You might also be interested in Erigami’s contribution on suburban densification.)