Judy, thank you so much for adding this helpful information!

1. A silver polishing cloth works very well on light tarnish and on pieces with an oxidized finish.
2. When you are travelling, toothpaste is a good way to clean brass, copper, or nickel-silver jewelry, although the gel types are not effective. Take along an old toothbrush to remove the toothpaste from fingernails and jewelry crevices.
3. For heavy tarnish and corrosion, commercial brass cleaners such Brasso, Wrights, etc., are effective. For remaining spots, try 4/0 (0000) steel wool, which may (or may not) slightly dull a mirror finish.
4. Dipping multimetal jewelry for a couple of seconds in a commercial liquid silver cleaner called “Tarn-X” (available in a black plastic bottle) is often the simplest method. Follow the dipping with a thorough rinsing and drying. Once dry, buff jewelry with the silver polishing cloth, if needed. For regular cleaning, keep a small amount of Tarn-X in a container with a snug plastic lid; it may be re-used for months.
[Some cautions about using Tarn-X: (a) dipping jewelry will probably remove any antiquing or oxidized coloring it has; (b) most harder stones may be safely dipped, but the surfaces of coral and lapis lazuli may be dulled by repeated contact with Tarn-X, and sodalite may turn from blue to purple. Read the Tarn-X label. Do NOT EVER “soak” jewelry in Tarn-X.]