I don't know if this will help anyone and, of course, you're on your own but over the last several years I have been using more of the road and by and large find that drivers give me a wider berth. Riding along the very edge of the road invites drivers to pass when there are oncoming cars. When they can see there is not enough room to stay in the lane they are less likely to pass closely. Weaving a little as they approach doesn't hurt either.
A bright flashing tail light is also a great help.
There are some good tips about this on the site of the League of American Bicyclists. I think I originally read an article about this on their site. The thinking was that in certain situations you must claim your space.
Last edited by Turner2; 08-19-19 at 11:47 AM.