This year John woulnd't let me count road kill (there was slim pickings anyway), so here's what we did instead

Freeway License Plate Tally - Black River Falls to Cambridge Wisconsin, I 90
(plates can only be counted ON the Freeway, and the state we are in will not be counted)

Illinois - 14
Minnesota - 12
Oklahoma - 2
Manitoba (Canada) - 2
Indiana - 2
Michigan - 2
Ohio - 1
Florida - 1
South Carolina - 1
North Dakota - 1
North Carolina - 1
California - 1
British Columbia (Canada) - 1
Tennessee - 1
Ontario (Canada) - 1
Washington - 1