I will be visiting Toronto on a weekday - probably this Thursday, Aug. 7 - driving in from across the border in the US. I can time my inbound trip to avoid most of the morning commute traffic but when is a good time to leave downtown for my return trip in the afternoon to miss the heaviest outbound commute traffic? I am very flexible with my schedule, but would prefer to not wait till evening to drive home. Any advice is welcomed. Thanks.