One great way to lose weight if you are at work is to take the stairs instead of the elevator. It's a simple tip, but it really works. It you work on the 10th floor and it takes about 30 second to go up a flight of stairs, it will take you only 5 minutes to get to your destination. The wait and travel time for an elevator will probably close to that, if not longer.
A good tip to help you lose weight is to make small goals as well as long term goals. If you only make a long term goal, it can be really easy to lose sight of what you're doing each day. Smaller goals make it easier to take weight loss one step at a time.
Pack your lunch for work or school. Do not give in to the temptation to pick something up from the fast food joint down the street or your school's cafeteria. Instead, pack your own lunch. This way you can control your portions. You can also be sure that what you are eating is healthy for you.
A good way to lose weight is to do some sort of aerobic exercise. These kinds of exercises involve almost all of the muscles in your body, but more importantly your heart. By doing twenty minutes worth of strenuous activity everyday, your heart gains enough muscle to beat less times per minute during the rest of the time.