If you're looking to get in shape on the cheap, your workout schedule is available at klydewarrenpark.org. The downtown deck park offers a workout class every single day, from zumba to boot camp, but the best class on the docket takes place at 10 a.m. Saturdays. Hosted by the Dallas Yoga Center, the instructors are experts at guiding you into and out of challenging positions. Pair it with a boot camp or meditation class to feel the burn or find your inner zen. The best things in life really are free.