We went from Rochester to Duluth in the late Fall last year and didn't pay any tolls. Great route, unless you're trying to do it in a mad-dash hurry. Went Rt 33 into Buffalo, then 20 down to PA border (real cheap gas on the Seneca Indian Reservation). Quick pass through PA, then to Cleveland. If you've not seen the Rock n' Roll Hall of Fame, stop there. Continue on 6 to 2 along the lakeshore route to Toledo (no tolls and more cheap gas in Toledo), into MI, then 33 to 96 and over to the western coast of MI (see the Leelanau Peninsula and Sleeping Bear Dunes, if time allows), 31 up the coast is very scenic, then cross the toll bridge to St. Ignace and the Upper Peninsula. Beautiful country. If you can stay a little and take the ferry to Mackinac Island for the day, it's well worth it. Rt 2 to 41 across the UP is beautiful country, then 28 back to 2 and across northern Wisconsin to Duluth. Scenic and historic iron ore docks, mining country, very interesting to see. We loved it, even hitting sub-freezing temps in November. It's the trip, not the destination. Enjoy!