As rapidly as times change, a deck of cards remains the most timeless tool when traveling with kids. Beginners can bask in the glory of games such as Go Fish, while older kiddos can learn to play Spit!, Gin Rummy, Hearts, Solitaire, or War. For next-level gaming, introduce a pot of marshmallows or roasted peanuts and teach ‘em some poker. It’s amazing how quickly the youngsters will learn for treats.