Be courteous to other drivers
Just a simple thing, with everything going on small things can make someones live easier. For me, when I'm driving around people have lots on their minds and may need to change lanes. Let them in. It's a small thing and you may get to where you want to go a few seconds later, but it can be one less stress in someone's day. You know you will need to switch lanes and you would like it if someone would just let you in and a quick wave to say thanks (that makes me feel better).