Any time you want you can take a yoga class in a calm meditation garden, do a core workout in a Maui-like setting, or hop through step-aerobics in the dojo of an empress. This is the beauty of the virtual workout Yourself!Fitness, as played in your Sony Playstation 2, XBox, or your PC, and lead by the lovely but not-too-chiseled virtual trainer Maya (aptly, it’s the Sanskrit word for illusion). A New York Times article last week documented the growing phenomenon of real workouts lead by virtual trainers. Like a human trainer, they instruct, encourage, and remember what you did last time. Unlike a human, you have unlimited access and there’s just the one-time fee––about half of a session with a trainer who sweats. Prices start at $30 for the PC version.