Tracking Toll (bridge / highways / etc.) costs as part of tagging "Drives"

This would be a very handy feature to centrally view my overall costs for commuting and generally getting around my hometown area (in this case, the NYC - tristate area, which has a lot of tolls). The combination of "gas savings" per drive and the costs for "tolls" would more optimally track the cost of a given drive (ie. from tagged location to the next tagged location). Thanks.