Have you ever lost something important like a wallet?

I thought I lost mine today, but luckily it had just fallen out in my room.

what steps did you take immediately after realizing it was gone?

I was planning to call my parents to cancel the credit card in there, and hoping someone would return it, and I called stu and my roommate to see if they had seen it.

and LUCKILY my roommate found in our room, so everything worked out.

But I want to make sure I'm prepared in case it really does happen.

If you did lose yours, did you get it returned?