I still drive and around the city it is not too bad. I use a a few tricks, such as turning right as much as possible, but when I get on freeways, which is about the only way to get from city to city any more, I am faced with drivers coming up on my left and getting in my blind spot.
For $10, I fixed that thanks to a few rental cars and
Amazon.com. You affix a blind spot mirror to the driver and passenger side mirrors and you can see the cars right next to you.
It is hard to turn an old neck to look without the mirror and it is also a distraction.