Does your retirement plan include travel? Let Lynn and Larry Michelsohn help you enjoy a relaxed, fun-filled summer in Europe. Their lighthearted retirement travel guide shows you how to . . . Choose countries that sound interesting-places you've always wanted to visit. Travel by ship, plane, train, bus, tram, taxi-no driving on the wrong side of the road required. Settle into a European city for a week or a month. Get to know the place and its people better than is possible on a whirlwind tour. String together a few month-long stays in different cities. Why not? You're retired. Your time is...