Change it up!  Folks struggle with getting in the habit of consistent exercise, then often times once we get into the routine of going to the gym we may notice that the gains (or loses) aren't what they were in the beginning.  That's because our bodies adapt to the workout, learning to do it more efficiently, to put it another way our bodies burn fewer calories as it learns to anticipate the demands of your workout.  That's why its important to change it up!  Try something new!  Remember results come from being challenged and uncomfortable!  Don't know how to change it up take a class or work with a Personal Trainer!