Any Old Nook Or Cranny Meaning

Example : 1960, P. G. Wodehouse, Jeeves in the Offing, chapter VIII:  [Aunt Dahlia] had done Wilbert well where sleeping accommodation was concerned. What he had drawn when clocking in at Brinkley Court was the room known as the Blue Room, a signal honour to be accorded to a bachelor guest, amounting to being given star billing, for at Brinkley, as at most country-houses, any old nook or cranny is considered good enough for the celibate contingent. My own apartment, to take a case in point, was a sort of hermit's cell in which one would have been hard put to it to swing a cat, even a smaller one than Augustus, not of course that one often wants to do much cat-swinging.