Oh no, you must be feeling horrible!! I hope you find it in the office tomorrow. I agree with the other girls, just sit down and think back where you've been, what you've done and see if you can trace down any places you haven't thought about. I lost my watch one time at work(it was very loose and kept slipping off). When I noticed it was gone I just thought of when was the last time I saw it then what I was doing in between and then I remembered when I was reaching in between boxes for something I felt funny but didn't bother to check it out. I went back to those boxes and sure enough it was in between them. Good luck, I really pray that you'll find your ring!