It's not fucking rocket science. Leave a mask in your car. Then you don't have to remember.
Yeah.
Work gave us all like 4 or 5 cloth over the ear "easy" masks and I have another half dozen a family friend made early on that tie on. I generally keep an easy one in my laptop bag, another in my car, one at work and one in my coat pocket. If I am going out and know I will be using it for a while (ie, grocery shopping), I wear the tie on ones.
As I use the easy masks they sort of rotate around, until they are all dirty, then I wash them. I generally don't wash the mask if I wear it for minutes, like running a package into the post office, but do if I wear it for several quick trips or for any length of time over like 30 minutes.
I interact with no one at my job, like not even in passing, because there is only one other person regularly in the huge building so I don't have to wear one at work most of the time.
Just keep them everywhere at this point. I kind of want to get more but I have not found any cool designs I like enough.