spick and span

from The Collaborative International Dictionary of English v.0.48

Spick \Spick\, n. [Cf. Sw. spik. See {Spike} a nail.]
   A spike or nail. [Prov. Eng.]
   [1913 Webster]

   {Spick and span}, quite new; that is, as new as a spike or
      nail just made and a chip just split; brand-new; as, a
      spick and span novelty. See {Span-new}. --Howell.
      [1913 Webster]