I would wash the cabinets and walls with borax(laundry aisle). If you can remove the dead microwave and get it out of the house, as I know from experience that it will hold the smell in its plastic. Make sure you wash behind it. Set a couple of open pans of baking soda around your kitchen. Also if you have any charcoal brickets wrap them in a piece of newspaper and set them on top of your cabinets, this is also an odor absorber and cheap(please make sure they are not the ones that are presoaked with lighter fluid that would be a whole other problem). Wash the intake filters for your air conditioner and change the filter. Then to cover any residual smell in a large pot(an old one that doesn't matter)place 1T cinnamon, peel an orange(eat orange) and put peel in pot, you also can add lemon peel, cloves(if you like the smell), vanilla bean or a little bit of extract. You can add more sweet spices if you like. Pour water over until about 2 inches from the top of pan(ours can hold 2 1/2 gallons) and let it simmer all day, checking it every 1/2 hour to see if you need to add more water. After a day I have not had any smells hold up to this. Warning this will add humidity to your house, open windows so breezes can clear it and odors out. It took me about 2 days to get rid of the odor that come when you don't take the metal seal off of a "microwavable meal" as per package directions and cook it a little too long. It also can melt the door to the microwave. Anyone know how to clean up a gallon of soft soap?(I did it the hard way too, with water).