I hate packing shoes for trips. I avoid check-in luggage at all costs. For carry-on luggage, shoes take up a lot of room and they are heavy. Thus, when I'm taking a two or three day trip where I'll be combining business and pleasure, I prefer to take just one pair of shoes--the ones I wear to the airport. Sometimes I'll pack an extra pair. What shoes do you folks take with you for travel that give you comfort and the versatility to switch from business to casual wear? Is there an ideal travel shoe?