Yesterday I noticed my important nest egg disappeared . I kept it in my drawers of my desk. I divided two bunch of bills. I look for them but both of them disappeared. I could not guess it occurred by a thief, because the drawers were not messy. If I ask my wife my nest egg will be obvious and I may loose them.. I looked for them for a while then I remembered that I changed the place where I kept them some months ago.Some months ago, my wife said to clean messy part was important so she was going to clean each room. Ｓo I was afraid my nest egg may be found by her. Then I changed the place to keep them. And I for got new place to keep them. How should I remember the place?