Obviously, we need a mystical fourth lane where all minions die an yeild gold upon arrival. The lane is restricted for Supports only, and access from greedy AD Carries is blocked off by way of a rainbow bridge that also grants full vision of the lane, so you never have to worry about ganks.
EDIT: It was a joke, guys. Supports are fine as far as positioning is concerned.
Yeah! Then we can go to Candy Mountain Charlie er.. i mean Taric!