Lose weight by taking the long way every time. Assuming you have no mobility issues, taking the stairs will help keep your metabolism moving throughout the day. If you live within walking distance of the market, you can also try walking during your errands. This burns calories and helps the environment at the same time!
When your primary exercise goal is losing weight, you should consider cardiovascular exercise more important than weight training. Weight training is important for building muscle tone and shapely muscles, but cardio exercise is responsible for fat burning and weight loss. If you are looking to lose weight, you should focus on getting your heart pumping instead of toning muscle.