Oh man, I always get that mixed up! I think you mean "sherd," like a piece of broken pottery. Found a killer one last year that had this glossy, almost metallic blue glaze on it. It was just a tiny triangle, but you could tell it was from something fancy. Made me wonder about the whole pot it came from.

Yeah @karencampbell, I just give mine a quick damp wipe first.

Yeah, laura_chen41's cloud backup tip saved me too!