Enter your starting point & destination and this free Google mashup will spit back the quickest cab route, probable cost, cost + 15% tip, and mileage distance. One oversight: the recent $1 fuel surcharge per ride isn't factored in, the online version of a free Google mashup sticking its fingers in its ears and going "Lalalala".

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Hop in the back seat at Chicago.TaxiWiz.com