My sympathies! I frequently get obsessed about finding a lost item, too. Most often fountain pens. I have over a dozen of them, plus ghod alone knows how many ball points and rolling balls.
But if I had in mind to use the red marbled fountain pen, I WANT the red marbled fountain pen, dammit!
^you don’t have a teen around do you? I hear the boho/hippie look is in.
No teen. And no skirt (not hippie, just a basic skirt with a really cool space age pattern). I took everything out of the closet and inspected it as if the skirt somehow had attached itself to another piece of clothing. It hadn’t. Then I took everything out of the party clothes closet since maybe for some reason I had put it in there. I also moved everything on the floor of both closets in case it had fallen to the floor. Not there either. Then I went through the work pants and tops closet. Nothing. Then the casual clothes closet. Nope. I even looked through the coats and jackets closet in case I had lost my mind when I put it away. (Yeah, I have a lot of clothes, but I know everything I have and everything has its place.)
I’m going to stop looking now. As Einstein said “Insanity is doing the same thing over and over again, but expecting different results”. Of course, maybe he never had something inexplicably disappear. Hell, maybe someday it will inexplicably reappear.
I’ve lost so many things, but most of them temporarily.
I often say “I’m giving up. It hasn’t left the house.” And a week later, I say “Hey, why is my Japanese pen next to the phone? I’ve been looking for that!”
Did you ever bring it with you on a trip, or otherwise have reason to put it into luggage of any kind?
Nope. I’ve racked my brain trying to think of something I might have done with it but I’m coming up with nothing. I hadn’t worn it yet this year and now can’t remember when I last did. I know I would never give it away - it’s a one of a kind piece. It’s washable so I didn’t take it to the dry cleaners. I have enough closet space that I don’t have to put away out of season stuff. It’s really just bizarre that it’s not here.
Ah. Unfortunately for me, my vet charges an arm and a leg for everything. Fortunately for me, I can do the IV by myself. Good luck with your kitty!
<does a string search>
<gets no result>
Have you checked your drawers? (As in the bureau drawers.) I ask because while you’d normally never put the skirt in a drawer, it’s about the only place you don’t seem to have checked. Sometimes, your brain just takes a hike.
Oh, yes, I checked the drawers, including undies and socks. And the laundry basket in the linen closet. And behind it. And for good measure, the chest that holds extra blankets. At this point, I’m expecting to some day open the closet and it will just be hanging there, returned from its trip to another dimension. 
Did you check the refrigerator? Freezer? Microwave? (Sorry, I was just reading the thread in MPSIMS about strange places lost keys have been found. Refrigerators seem to be extremely popular.)
Well, I guess I will now. 
Actually, I once found my TV remote in the refrigerator.
I keep wishing there was a GPS tag that I could put on EVERYthing, but it might get awkward: gloves, hats, all my favorite pens and screwdrivers, the papers I print out at home but need to take to work, and of course each and every sock.
Maybe some kind of nano-bot technology, so I can tag tiny things like earbuds and my lucky half-farthing.
ETA: I bet Google knows where these things are! There must be some sort of Sooper-Sekrit-Google-Satellite/Drone View, where you can search for “my little black Gucci dress”.
Did you look hanging on hooks behind doors that are never shut. I found a hoodie I had been looking for since last year on a hook behind the door to the upstairs bathroom. I never shut that door because of a catbox inside.
There are hooks on the back of the spare room door. I just looked. Not there either. But I did find a wig I wore for Halloween a few years ago.
Look under other things on hangers? Maybe it’s under a sweater? When hangers were at a premium here, I used to layer clothing on hangers.
Mini gripe: It’s -8F here right now. Open the book of faces and first thing I see is a post from a friend asking how can there be global warming when it’s so cold. I knew he was dense, but didn’t think he was a moron.
A number of years ago, I bought a set of red king-size sheets for our bed: fitted sheet, flat sheet, 2 pillowcases. I used the fitted sheet once, washed it, then it disappeared. I’ve looked in the laundry area, linen closet, all other closets, and it’s nowhere. I know I didn’t accidentally throw out a king-size fitted sheet, so it must be here somewhere. Every now and then, I search for it all over again. It’s gotta be here somewhere!
I’ve been looking for an old pair of dressmakers shears that came from my Aunt. I kept them safe and away from kids using them on paper for years. About 2 years ago I needed them and they were not where I kept them. I’ve been searching ever since. I’ve accused everyone of ‘borrowing’ them. No one knows anything, of course.
It’s probably hanging out with the missing pillowcase from my dark teal sheet set. I love those sheets because they’re so comfy but I hate that I have to have mismatched pillowcases whenever I use them.
Did you by any chance happen to find a bunch of extra socks or clothes hangers shortly afterwards? I have a theory that clothes dryers are also transmogrifiers. I have a shirt disappear from the dryer and suddenly the pantry contains a big bag of pork rinds that I have no memory of buying.
Ymmmm… can’t beat po’k rinds made with real cotton…