My main problem stems from decluttering. Having had a good sort out I put the remaining objects back in different places ( it seems such a good idea at the time) then I can never remember where their new home is. If you add this to the usual - “Where on earth have I put my ?” The result is chaos.
I am still looking (in a half hearted manner) for my iPad pen. Last March I was using it, went out of the room briefly to fetch something, returned, and it had disappeared. The room was searched, the sofa turned upside down, my route out of the room examined - nothing. Personally I blame Polly, our house poltergeist and I feel sure that one day I will come across the cache she has made containing all the missing objects. Pity that so many of them have been replaced, but never mind they can be duplicates for the next time that we lose them.