Staying motivated to work out during the winter can be difficult: your exercise options are limited, and the snow and the cold make you want to do nothing except curl up on the couch under some blankets and watch a movie. Even if your intentions are good, bad weather may make it difficult to get to the gym. Maintaining your exercise routine during this time of the year may require injecting some new life into your workouts. Try shaking up your routine with these fun fitness ideas - some of which don't even require leaving the house. Zumba Many people love the Latin-inspired moves of this dance-fitness craze. Zumba uses international music to create an exhilarating workout that is less about counting reps than moving to the music. Zumba provides cardiovascular exercise as well as strength training and can be easily modified to meet your individual fitness needs. Zumba classes are typically 45-60 minutes and are offered at fitness centers, dance studios, and community centers...