The missing puzzle piece was bugging me.
It was an expensive jigsaw (currently £32 incl post), and I was cross with myself fo having lost a piece.
I'd checked the table, which had piles of stuff on it because we are decluttering (still). We checked under the table. I even felt the bag of the Roomba station, to see if it was in there. While I was down there, I winced at the "dust bunnies" in the areas that Raymondo can't reach.
Despite having a splitting headache, I went and got the dustpan and cleaned them up. I did a thorough jub, underneath the table legs, underneath the kitchen trolley, all the nooks and crannies.
And my diligence was rewarded - the missing piece!
I'm going to look at the puzzle for a couple of days before breaking it up