It is ideal that your jewelry should be taken off when you get home.
Jewelry should not be worn when doing house work, gardening, or sports, especially swimming.
Avoid wearing jewelry while applying lotions and perfumes.
For gold and gemstone jewelry, dilute dish detergent in a small bowl of warm water and soak each piece for a 3-5 mins. Gently clean your item by using a soft bristle toothbrush. To ensure you removed all the diluted dish soap, rinse your jewelry under warm running water, and pat dry with a soft, lint-free cloth. Be sure to dry your jewelry completely before wearing again.
Storing sterling silver in an airtight plastic bag will slow down the tarnishing process.
To clean oxidized jewelry, simply use soap and warm water with an old toothbrush. A polishing cloth will remove the finish.
If a bright piece has tarnished you can purchase a product called Tarnex (found at your local grocery store), pour a small amount in a non-food container, swish or dip the piece momentarily, and then remove and rinse very well and dry. The product can then be returned to the bottle.