Unless otherwise specified, the wires I use are specially treated with lacquer coatings that are anti tarnish. Chain, charms and other metal elements are not always conducive to lacquer coating, so protection from oxidation is recommended. As with any metal item, Storing jewelry in air tight zip lock bags will slow any possible oxidation and keep your jewelry looking nice. When polishing is desired, careful rubbing with a clean, soft cloth will remove most oxidation.
Many of my designs are delicate. Continuous wear is not recommended. Avoid wearing wire jewelry with sweaters or other fabrics with a loose weave to prevent snagging.