Getting Rid of Mold and Mildew

First, when cleaning mold, you will need a mask. You can get a HEPA filter mask at a hardware store for a reasonable price. Remember to also wear gloves. Run a dehumidifier and/or a fan to help dry out the area, since mold and mildew need moisture to thrive. Once you have found the mold or mildew (use your nose or eyes to do so), you will need to attack it. On hard surfaces, you can use a stiff scrubbing brush with some kind of laundry/dish soap and hot water, or a take advantage of a specialty cleaner you buy from the grocery store.

You also have the option for going for the big guns as far as common household cleaners go, and using a solution of hot water and bleach (which kills mold in the corners of bathroom ceilings quite easily with just a few spritzes). You need to remove all the mold from your home and spritz bleach where you can under where the mold was previously. In some cases, bleach does not work out so well, in which case simply try to follow up with the aforementioned hot water-dish/laundry soap-scrub brush method.

Items that have mildew on them will benefit from fresh air and sunlight. Upholstery can be treated with a wiping down with rubbing or denatured alcohol. You can also clean upholstery and rugs with thick soap suds, wiping down afterward with a cloth wet with clean water, and taking care to use as little liquid as possible so you do not perpetuate the problem. If your mold and mildew problem extends to the outside of your home, you can use a low-pressure spray washing of fungicide. Fungicide can also be used other places, but it is considered a pesticide and dangerous to humans; you'll need to treat the fungicide as a health hazard and take appropriate precautions.

If it comes to the worst alternative (which can be the best in certain cases), you will simply have to look up a fumigator in the phone book and have her clean your home and/or belongings for you.