Re: help [how do you clean your coins and jewelry?]
I clean my jewelry with a soft toothbrush and original tooth paste (not the abrasive stuff) or soak in ammonia unless it has a soft gemstone attached (dont soak soft gemstones).
I've read in other posts to soak coins in A-1 steak sauce, ketchup, or just leave them be so they dont disintegrate. I don't have experience with coins.