As the title says, my SM asked me to retrieve the store card for her last Friday to order pizza for the partners because we were working after a snow storm. I left shortly after the card was removed and on Saturday it wasn't back in the safe. On Monday, SM texted me to ask where the card was and reminder her she is the last one who had it. She found it in her washing machine because she put it in her pants pocket then left. It is now Wednesday and she has still not put it in the safe. She specifically told other partners I was the one who had it last before she ended up finding it. I've let the co-manager know but I don't know who else to report this to.