Tarnish is the main reason most people do not like Sterling Silver. It gets black, rubs off on skin and clothing and if it gets really bad, is very hard to clean. Good care will help retard the formation of tarnish. Keeping jewelry in plastic zip lock bags when not worn helps as does frequent washing with a mild soap and polishing with a cloth made for that purpose.
However, a new type of Sterling Silver, Argentium Sterling Silver, has been recently introduced. To be called Sterling Silver, it must contain at least 92.5% silver. Usually, the balance of 7.5% is copper, added for strength. Peter Johns, of Argentium Silver Co. Ltd. in the United Kingdom, has helped develop a new Silver by adding Germanium and the results, Argentium Sterling Silver, is a Sterling Silver that is very tarnish resistant. Argentium is a registered trademark.
Anecdotal evidence suggests that people with sterling silver sensitivities do not have these with Argentium sterling. Side by side regular Sterling Silver and Argentium Silver look exactly alike. I have been very careful to keep my supplies apart so that you will know which type of silver you will be receiving. If I'm in doubt for any reason I'll sell it as Sterling.
For information sake, my process, after a piece of Chain Maille is made, is to tumble it for several hours to polish to a bright shine. I do this for both Sterling and Argentium. As required (with Sterling) my pieces are tumbled again when needed, to keep the shine. I tumble with stainless steel shot, water and Dawn dishwashing detergent. Dawn has been recommended by many others who make Sterling Silver jewelry and I find it works well.