Protect the interior lining
Keep fabric linings dry and free of dust. Store pieces in their own compartments so linings are not rubbed or snagged.
Avoid moisture
Keep boxes away from damp places and wipe away condensation promptly. Silver stored in dry conditions keeps its finish longer.
Clean the outer surface
Wipe exterior surfaces with a soft, dry cloth. Check hinges now and then and keep them free of grit.