A breaker bar and socket set is a good idea, provided that you have high quality sockets. I have broken more than one cheap socket over the years. Have also twisted supposedly high quality 4-ways into a pretzel with frozen lug nuts. A "snipe," or "cheater," a piece of pipe you can slip over the end of the breakerbar to give it more leverage, is a good idea also.

Tip for all, 'specially those who drive off the beaten path, and thru water: Remove lug nuts and oil or grease the studs. Lugs that are installed with an impact wrench and then rusted in place are often really really hard to get off...