It's recommend to remove your sterling silver jewelry before going into a pool, hot tubs/hot springs, and when doing household chores that involve chemical cleaners.
1. Warm Water and Mild Dish Soap with a gentle brush
2. Microfiber Cloths or polish-embedded cloths (may affect the color of patina)
3. Ultrasonic cleaner -- if your jewelry has a stone in it, TO AVOID DAMAGE, please check that it is safe to place that type of stone in an ultrasonic cleaner
Consistent wear may help keep tarnish at bay, but when your jewelry needs a rest, try to store it in a cool, dry place. Storing with anti-tarnish strips, silica packs, or even chalk may help.