Just got back from a three day, two night trip to Michigan.
The primary focus was visiting the eight remaining counties in Michigan I've yet to visit, all of which were east of I-75 (last one was Presque Isle).
Secondary focus was knocking out a bunch of US highway mileage in the northern LP. Now have US 10, 23 and 131 complete in Michigan. All that's left for me for US highways in the LP is 127 south of Jackson, 23 south of Dearborn, and all of 224.
Picked up a bunch of Interstate and US bannered routes on the way.
Also finished off the entire highway system in Mason, Oceana, Muskegon and Kent counties.
General routing (with some side excursions) was:
Day 1: I-94 east to US 23 north to I-69 east to M-25 north/west to US 10 west to US 127 south to Mt. Pleasant
Day 2: M-20 east to US 23 north to US 31 south to US 131 south to M-72 east to I-75 south to US 127 south to Mt Pleasant
Day 3: US 127 north to US 10 west to US 31 south, to M-20 east to M-120 south to M-46 east to M-52 east to M-91 south to M-44 west to I-96 east to M-50 east to I-69 south to M-60 west to M-311 north to I-94 west