When storing, keep each piece of gold jewelry separate from your other jewelry to avoid scratches. If the jewelry is a delicate gold chain, hanging it from a hook will keep the chain from getting tangled. Or stretch the chain out onto jewelers' anti-tarnish tissue, roll up the tissue, and then place the roll in your jewelry box, laying flat. That will keep the chain from getting knotted and also slow down the chemical process that results in tarnish. You may also want to put it into a plastic bag and squeeze as much air out of it as you can before closing (unless your gold jewelry includes pearls or opals; those gems need exposure to the moisture in the air to maintain their luster).
If your gold jewelry is well cared for and properly stored, you may never have to clean it. That means protecting your gold jewelry from being scratched by other pieces, keeping it in a dry atmosphere by using silica in your jewelry box or putting each piece in an airtight plastic bag, which in addition to keeping the piece dry gives the alloy metals less oxygen to react to, and keeping your gold jewelry away from sulphur producers such as rubber bands. As rubber bands age and break down they release sulphur so wrapping jewelry packages with rubber bands or having rubber bands in your jewelry box will speed up the tarnishing process. Other sulphur producers that you should not use for storing your jewelry are newspapers, non-archival cardboard boxes, leather, and silk.