Love to drink a cup of delicious, hot black tea? Don't toss the used tea bags when you're done. There are myriad uses for the natural powers of tea for your kitchen. If you have stubborn, baked-on messes in your casserole dish, soak it overnight in water with some old tea bags; the tannins help break down the greasy mess. And does your fridge smell? Place old tea bags in a cup in the back of the fridge. The bags will absorb odors and help leave a fresh, clean smell.