Always keep yourself moving, every calorie counts
Sit up straight and dont slouch, you burn more calories sitting up straight
Green tea boots your metabolism (debateable) but hey, what have you got to lose, so drink lots of it!
Wear less layers of clothing, more cals are burned when you are cold
Lack of sleep may stimulate appetite, but you burn more cals when you are awake
Spicy foods boost your metabolism. Eat your veggies with low cal hot sauce, cayenna pepper or chili powder
Clean the house, the more you move, the more calories you will burn
Caffeine boosts your metabolism and your ability to burn fat. Take caffeine pills or drink coffee but be careful not to have too much, you can get nasty headaches and become dehydrated
Drink your water ice cold to burn even more calories as your body has to use up energy to balance your body temperature
Take a cold shower, this works in a similar way to the iced water