Moving
The trick -- that is, the trick I play on myself -- is to say "let's do it before 9am", because my earlier attempts were more passive. I'd say "I'll get to it after I'm done with X" (where X = Something Sedentary) and next thing I know it's noon and I've wasted the entire morning. This is similar to my morning habit of journalling during my 9:30 break; instead of "I'll get to it when I get to it" it's "I'm doing this at THIS time". Scheduling is a good thing, especially if you're as easily distracted as I often am.
What exercises am I doing? I don't have a strict workout just yet, but I just googled "stretch exercises to do at home" and made a list of ones that I could easily do without using props like jump rope or medicine balls, or make tons of crashing or grunting noises, and within the confines of Spare Oom. A lot of stretches and moving in place. My aim is to strengthen my hips and knees, which of course are the first to go when one ages. And now that the weather is finally getting better, we've been taking short walks around the neighborhood (practicing good social distiancing while we're at it, of course).