The Cause

Stored clothing: Mothballs may be toxic, and they make you smell like a thrift store.
Sweat/body odor: Bacteria on the skin plus sweat causes body odor, which can seep into clothing.
Shoes: Consider the potent combination of 98 percent July humidity and approximately 250,000 sweat glands on each of your feet. (No wonder you keep finding your sneakers on the back porch.)

The Cure

Stored clothing: At-home dry-cleaning kits like Dryel ($11 at supermarkets) can remove stale odors.
Sweat/body odor: Simply wash your clothes to kill unseemly body odor in fabrics.
Shoes: Avoid wearing the same pair of shoes two days in a row, and stuff them with newspaper, which absorbs moisture and, therefore, smells. Avoid sprays, which can leave a white residue.