We thought we'd share with you our tried-and-true method -- call it the lazy person's way -- of keeping our vintage silver tarnish-free. We assume it works because the jar is air-tight -- we use the silver every day, but obviously not every single piece. (We haven't noticed scratching, but we don't actually just toss it in there. And since all of it is vintage, and most of it is from the flea market, scratches are okay with us.)
We like this painless, eco-friendly, non-toxic method rather than those silverware cloths with who-knows-what on them. Plus it frees up our limited drawer space.