Weight loss experts caution that changing your diet is not enough if you want to cultivate a slimmer figure. Since losing weight requires an average deficit of 500 calories a day, healthy and sustained weight loss can only result from a combination of sensible eating and regular exercise. However, the exercise component of weight loss can be very difficult if you have a hectic life. For single parents, workaholics and other busy people, it is simply not possible to go to the gym most days of the week. Thankfully, these ten smart and simple tricks will help you to burn extra calories when you have less than an hour of free time at your disposal.