A good way to speed up your weight loss is to keep your body's metabolism high all day long. Cardiovascular exercises can raise your metabolism for duration of the exercise and for quite a while thereafter. Unfortunately, calorie burning stops when you hit the couch to watch TV. To keep the metabolism up, it is good to spread short bursts of exercise throughout the day. A longer workout is not always the best. Breaking your one hour cardio exercise into two 30 minutes, or even three 20 minutes throughout the day can be very beneficial in keeping your body in fat burning zone.
You don't have to make multiple trips to the gym for all your cardiovascular exercises; walking home after dinner, using stairs instead of elevator can each contribute to your cardio workout. Just make sure you feel warm and breath harder than you normally do.