Awhile back we talked about a 50 cent pocket compass I ordered off Ebay. Rather than buying the compass from an online store, just go straight to the source and cut out the middle man.
Paracord zipper pulls were added to my packs, and then the compass was attached to the paracord. Is the pocket compass a primary land navigation aid? Of course not. The pocket compass is used in conjunction with other navigation aids.
For example, while on a recent hiking trip with the dogs we stopped next to a nice pool of water to take a break. While the dogs were playing, I looked at the pocket compass to make sure we were headed in the right direction.
I know the area and there was no way we could have become lost. A pipeline passes through the forest just a few hundred yards from where the dogs and I stopped. Then there is a dirt road that bisects the pipeline. No matter which way we headed, we would hit either the road or the pipeline, as long as we traveled in a straight line.