If you’ve thought of starting a yoga practice, consider taking a class at The Arlington Center.  They offer many different yoga classes, including basic yoga, with a flowing meditative style; gentle yoga, which is soothing and restorative; Iyengar yoga, a more disciplined and detailed approach; and power yoga vinyasa, a rigorous workout in a heated room.  Their teachers are very well-trained, and they offer classes throughout the day.