Or maybe you would see some fantastic results by walking 15 minutes in the morning and 15 more at night after you've eaten dinner. The next variable to consider is intensity level. Try changing the intensity by making your workouts harder or easier, or a combination of both through interval training occasionally. Small and subtle changes can go a long way to improve your fitness level. Finally, the most obvious change that you can make is in the activity you do.
Variety is critical with strength training.
After the initial 4-6 weeks of weight training the body will plateau, and a good varied routine is necessary to see further improvements. Like cardio, there are many ways you can vary your program. First, try to vary the sets and reps you do. If you are used to 3 sets of 10, switch to 2 sets of 8 with a heavier weight. You can also vary the exercises that you do.