-Clean your house, windows, garage, backyard, etc. by sweeping, scrubbing, moping, polishing. All these activities burn calories.
-Park your car 10 minutes from work or shopping mall and walk. This will also save you time in searching a parking spot.
-Use the stairs instead of lift or escalators in mall, office, station and home where possible. You can lose several kilograms a year if you daily walks up and down 5 flights of stairs a couple of times a day.