Hey
you're headed in the right direction! A small workout of 20 mins in your busy day can benefit your healthier lifestyle. There are many workouts available online that one can do in just 20 mins. They way I see it is, it's better than doing nothing at all -- am I right? Instead of sitting in on a tv show or checking a social network website -- do a quick 20 min workout each day
Also -- implementing a good eating habit can help, too. Tweak out your daily meals by applying healthier options. This forum has an abundance of diets and recipes.
Good luck!