In my suburban area, orange driveway stakes are so common that they might not appear as property line markers to people. To address this, I opted for the Bernstein plastic stakes, which are a bit expensive but my clients seem to like them in the right circumstances. Duane suggested fiberglass electric posts, which I found to be priced at $1.40 each and they might be a better alternative to the conventional hardwood stakes I normally use. Not to mention, they are also lighter to carry in the stake bag.