Where is it?

So I need to find something for my sister and I have no idea where it is.  As a mom, I now can claim mom brain.  Claiming mom brain has both positives and negatives.  A positive: it is a real thing and it truly has messed up my ability to find things, remember things, or whatever.  The negaitve: do I really want to feel that I'm no longer in control of my memory?  UGH!