On a busy day commute, when driving north on Hwy400 (leaving the Greater Toronto Area, Ontario Canada) take the "Langstaff" exit just north of Highway 407... "Langstaff" looks like a typical hwy exit, and indeed it is, but it continues about 2-3kms alongside hwy 400 and rejoins it. Sounds like a small improvement to your trip, but on a summer Friday of long weekend, that 2-3km stretch of hwy400 is stopped (bumper to bumper), so the little jaunt will save you 15 minutes off your commute north! Travel safely.
Source: http://www.ctvbarrie.ca/traffic-cameras/
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 take the "Langstaff" exit just north of Highway 407... "Langstaff" looks lik...){kind=link}