Blind spot elemination idea

Originally Posted by Jack370Z

My problem is when backing out of a parking space at the mall. The blind spot I have a problem with is from both sides but primarily on the passenger side...I use the small porthole window behind the passenger seat but still don't feel confident and the passenger seat is usually blocking it. I only hope if someone is coming they will give way and stop or honk to let me know they are there. I haven't found a way, other than a passenger, to be able to see if anyone is coming (whether in a car or on foot). I can't think of any way to improve this. A backup cam wouldn't help and the side mirrors sure aren't any help. Suggestions?