It's so neat.

It's spick and span.

  Describing something clean and neat  

Not a speck of dust.

먼지 하나 없어.

This table is clean as a whistle. (Idiom)

식탁이 아주 깨끗해.

As shiny as a nes penny. (Idiom)

새 동전처럼 반짝인다.