spick and span
Pronunciation: /spɪk(ə)ndˈspan/
(also spic and span)

Origin:
late 16th century (in the sense 'brand new'): from spick and span new, emphatic extension of dialect span new, from Old Norse spán-nýr, from spánn 'chip' + nýr 'new'; spick influenced by Dutch spiksplinternieuw, literally 'splinter new'