For my wall tent Ive used 12" spikes (huge nails) from the lumber yard. Its the same ones I used in spiking log cabin walls down. I had a flat washer welded under the head to give a wider area for the tent loops and cords. I could drive them through hard packed gravel and rocky ground. A friend used the same for staking out his shelter for art sales on asphalt parking lots, they will drive into asphalt with a 2 lb or other small sledge. I normally just use an Estwing steel handled framing hammer to drive them and pull them. The ones with the straight claws are most useful I believe, and make passable digging tools for whatever camp chores you may have for light digging.
Something simple and easy to get, go to the lumber yard or home store and get some steel concrete form stakes. I have them in 18" and 24". They have holes through them on 2 planes to screw to the forms, but you can uses some 16p nails as handles to help pull them or as a stop point for your tent loops or cords if they wont drive all the way in on your camp spot. They may be a lightning hazzard, though if a storm cam up you could use them to make the holes then use large plastic stakes or wood stakes (also available in bundles as concrete form stakes)
