To change the filter on this type of refrigerator, gently slide the unit out, unplug the unit from power, turn off the water valve, remove and replace the water filter, turn water valve back on, check for leaks, plug refrigerator back into the power outlet, slide unit back in place, and you are done.
Although very simple, balance exercises can greatly strengthen your center of gravity. Any exercise that is done on one leg can be considered a balance exercise. Standing on one leg will improve your body's ability to center its mass over one leg.
Some of the replies claim that the difference in calories is negligible because you are only adding 10 lbs of weight, but it is important to remember that ankle weights are not passively carried near your center of gravity, but are taking advantage of the physics of rotational motion meaning that a small weight a long distance (about a meter) from the center of gravity increases the moment of inertia SIGNIFICANTLY, thus requiring much more work and burning many more calories.