A workout program is definitely something to look into. In fact, I recommend it. Now to create a good workout program you have to make sure you don't train two large muscle groups too close together. As an example I'll give you my workout program: 

Monday: Delts and Triceps 
Tuesday: Legs, Cardio 
Wednesday: Biceps 
Thursday: Chest, Cardio 
Friday: Traps 
Saturday: Back, Cardio 
Sunday: Rest 
****Abs are trained everyday including Sunday****