I'll have to try the baking soda trick. Does it matter what temperature the water is?

Let me explain what I'm trying to accomplish. I design and sell a line of jewelry primarily to fashion-forward boutiques. While their customers don't mind shelling out $200+ for jeans, they generally balk at paying such "outlandish" prices for jewelry. I love pearls and would work with gold if these boutiques would buy it, but silver is more accomodating to their price points, especially now with today's gold market. Unfortunately, I've discovered that people just don't know much about how to care for pearls and some of my customers have accidently ruined their pieces by dipping them in Tarnex, etc. I thought everyone grew up with "pearls are the last thing you put on and the first thing you take off", but not so! So I've decided to include a tag that lists what the jewelry is made of and how to care for it. Problem is, I'm not even sure how to care for silver and pearls!!!

I usually try to work with oxidized silver to make cleaning not so essential, but I'm having more and more requests for shiny silver. I've experimented some with argentium silver, which is supposed to be tarnish-free. Oddly enough, the pieces I first made with argentium silver have not tarnished, yet my spools of argentium wire in my studio have tarnished worse than my spools of sterling silver! So now I'm not sure that that's the answer to my dilemma.

So my problem is that I'm going out of my mind trying to figure out how to educate a customer base that I don't have direct contact with on how to not ruin the silver and pearl jewelry I spend my life making for them! Any ideas?