Go with a friend. Studies have shown that taking someone along with you to a gym is likely to not only increase the amount of time you stay, but also the intensity of your workout. Some gyms offer discounts when multiple people register together, so take advantage of this and bring someone along!
After you finish a workout, you need re-fuel your body. Your body will need a nourishing, balanced meal and plenty of fluids, within in an hour of completing your workout. Your body works hard after a workout to rehydrate, store carbohydrates for future and exercise, and repair tired muscles.
A great tip to help you get fit is to not overlook the effectiveness of simple body weight exercises. Push ups, pullups, sit ups, and squats with only your body weight are very good exercises that are often overlooked. You can do them anywhere because you don't need any equipment.