The two things that I found the biggest help where when I decided to
a) fly mainly straight lines, with as few turning points as possible. That why if you aren't 100% sure that you're at the correct turning point, then it's no big deal, as you can just continue on track, until you find a better land mark.
b) make sure that the few turning points that you're left with, are bloody big towns, or big lakes, or something else, big and obvious from a few miles off track.
Through much of my training, my instructors had me doing flights turning at various little villages, and it got pretty difficult when you're 1/2 way between two idential small villages, and wondering which one you're supposed to be at!
The other thing to do, is if you have a VOR/DME note the bearings and distances on your plan, for your turning points. It helps to confirm that you are where you thinks you are, but doesn't really involve much extra work in flight.
Hope that helps.
dp