I used to have the same problem, but no more. The solution is very simple and elegant. Buy yourself an inexpensive Federal rangefinder on the auction site.

http://www.ebay.com/itm/VINTAGE-IDEA...item3cde5a117d

Now go out and shoot the camera (with no film) by first guessing the distance, then checking it w/ the rangefinder. Pretty soon you'll see that 3' is quite a bit different than 6', 10' is different from 15', etc. In a short time you will be very proficient at this. Then, sell the rangefinder for what you paid for it, or keep it around in case you get rusty. Works a treat, and once you get the hang of it, it's as fast or faster than using a camera w/ an internal rangefinder. Also, f8 is your friend, especially w/ the Novar.