Hello Thursday. I don't know what the temps are like where you live, but here in Central PA they're supposed to climb into the mid 50s (F), which is toasty for late December. Wednesday of next week, we're supposed to top off at around 60 (F). I'm fine with warm weather, as long as it saves me money on my heating bill.
Yesterday was good. I rearranged some furniture, not doubt part of my DNA, did 2.6 miles on the treadmill, and worked on the book.
Re: the treadmill. I don't like running, but I don't mind walking very fast, my average speed being 3.6 - 3.9 mph, once I hit 4 mph I'm actually in a slow jog. To increase my heart rate, I make the incline steeper, so I'm walking fast up hill. The videos I watch are either Pro-Walk Tours (great for the stay at home tourist) or The Average Runner (he runs around New York City). I avoid content providers who are into wilderness trail running. When I try to explain what these videos are like, people say "interesting," but I can tell they don't really understand, so here's one from The Average Runner running down the entire west side of Manhattan.