At my old house, I used a 1' length of 1/2" pvc pipe and solvent welded on a male threaded coupling. Drove that into the ground level with the grass and then in the fall, I would screw a 4' length of pvc pipe with a female coupling on the end onto that. After the first year, I learned that I had to put a cap on top of the pvc pipes, to keep the rain out of them. On a couple, they filled with water, and froze and cracked. I dipped the tops of the pvc pipes in orange paint for visibility. In the spring, I would unscrew the upper pvc pipe and put it away for next year. I left that snow stake "system" for the new owner when I sold the property. Now, I use fiberglass stakes.
What are you using to mark your driveway?
What are you using to mark your driveway?