I just returned from a road trip of about four weeks and 10,000 miles to western Canada. This included a clinch of the new NT 10 to Tuktoyaktuk on the Arctic coast, which re-clinches for me the numbered Northwest Territories highway system. (The windchills in Tuk were subfreezing the day I visited, so neither I nor any of the other tourists on the Arctic beachfront went into the water.) But 14km of new all-season highway is being built in Norman Wells (I spent two nights there, and checked out one end of the construction site), which at some point might be added to NT 1, so the NT highway system is still a bit of a moving target.
I re-clinched the TCH system, traveling a newly-relocated segment east of Saskatoon. I also now have everything in TM for British Columbia north of TCH 16, and clinched some significant provincial routes (AB 58, SK 5, MB 83).
I tried to complete my coverage of U.S. 10, including a trip across Lake Michigan on the S.S. Badger auto ferry to get from the Wisconsin to Michigan segments. But I'm still missing a short segment in Wisconsin near Appleton, which was closed for reconstruction. That's happened to me a few other times this year (U.S. 80 in Louisiana, U.S. 138 in Colorado), adding to my list of not-quite-clinched U.S. routes.
While I didn't go out of my way to re-clinch counties, since my July 2016 completion of Canada's counties I've revisited more than a quarter of those counties, including all five in the Northwest Territories on this trip (plus its sixth census division, which has a native regional government based in Behchokǫ̀, and may someday become a new NT county equivalent). I'm still going back through my records to compile the number of U.S. counties revisited since I completed the U.S. in July 2010. But my incomplete count so far is over 1000 (including many on this trip), almost one-third of the total.