DEAR HARRIETTE: Working from home for all these weeks makes me realize how reliant I had become on service providers like hairdressers and nail technicians. I know that sounds unimportant, given the circumstances, but in my work, I am on Zoom calls every day, all day long. My co-workers can see me, and I am looking a little rough around the edges. I don’t really know how to do my hair. And my nail…