No: every bank holiday, of which there's plenty in the UK calendar. When one is approaching, the cry goes up: "Where's the Planisphere puzzle?" (The tradition dates back to when it was a Christmas present for Sir, and it took us a week or so to finish for the first time.)
Herself does puzzles repeatedly, to help keep her wetware oiled. The challenge with this little offender is doing it, background an' all, before the dining room table's needed for something else; it's one of the few puzzles I know of where the edges are best done last, and it's me wot usually ends up doing them.