Taking care of your beautiful jewelry doesn't have to be hard.
The most important thing to do to keep your jewelry like new is to store it in anti-tarnish environment when you are not wearing it. Which can be as simple as plastic bag.
Jewelry boxes and cloth jewelry bags are best because they will protect them from unnecessary wear and tear, as well as keeping them shiney.
Sterling silver naturally tarnishes. Even argentium silver will over time, although it is slower to tarnish. The cause of tarnish is simply air (specifically the sulfur in the air); as well as moisture, lotion, hairspray...
Storing your gorgeous jewel, and hand made STUDIO FRAN jewelry, when it's not being worn is the best prevention of tarnish.
You will need to clean it from time to time and it's very simple. The simplest method is a soft cloth or brush with a little baking soda and lemon juice. Rinse thoroughly afterwards to prevent pitting.
If you don't have those items, paste toothpaste and warm water work great.
Ultrasonic machines are a great investment for cleaning jewelry.
Jewelry dips are not recommended. They don't work that well and can leave pits in the metal or precious stones.