I am the most consistent with exercise if a) I sign up for a class and/or b) sign up for a race. The races I sign up for vary from 5ks, half marathons, and sprint triathlons. Honestly, sprint triathlons are my favorite – ¼-1/2 miles of swimming, 10-15 miles of biking, and 3.2 miles or running. Sprint tris give me…