Hitchhiking is the least expensive way to get from point A to point B in any country. The only thing needed is a desire to be carefree throwing ''caution to the wind.'' Once that desire hits, you must make detailed plans and consider contingencies to that plan if #1, you have no money or #2, you have no way to the highway in the first place. Successful hitchhiking might also take a lot of luck and meeting the right people at the right time. It might also include a humbling time of learning the ''pay it forward'' philosophy. Before you take off for the open road, read this humorous and true story illustrating the Dos and Don'ts of this once-in-a-lifetime adventure. You may want to try it again--then again, maybe you won't.