Put the jewelry on is the last thing before going out. Take off jewelry when coming back home.
Do not use water to clean the piece. Try a dry cotton ball or soft cloth.
Please avoid any moisture (sweat, swim, shower...) or chemical (lotion, perfume...) because these may strip away the gold finish.
Store each piece separately in the pouch or a sealed bag to prevent the metals from tarnishing or interact with one another.
Remember, sleep with jewelry is not recommended as this could result in jewelry deformation.