+1 on the Safety Seal plugs. I have used 100's of the plugs on my own rides and on a few of my friends cars. And I have never had a problem with one of the the safety seal plugs.

Two of my cars have no spare tire and being wide low profile tires act like a magnet for nails and screws. I always carry a plug kit and a 12 volt compressor in the back, just in case. My record so far was after a trip though a home depot parking lot and I had 5 drywall screws in my tires, three screws in one tire.

Have also been told all kinds of horror stories of why you should never use tire plugs. But the flip side of this is one of my friends is a dealership mechanic on very expensive cars (the high end models top out at nearly $300k, cool cars but out of my budget) he uses the Safety Seal plugs on his customers cars. They do not charge anything for them and do no paper work so that there is no record of the tire being repaired for liability reasons. But they have had no trouble with plugged tires.