What are things that come in seven?

Answer:
Dwarves Years of good luck (or bad luck)
Days of the week
Continents
Seas
Deadly sins
Samurai
Sacraments
Hills of Rome
Sisters
Colours of the rainbow
Sister

First answer by Ratty.. Last edit by Garethfx. Contributor trust: 273 [recommend contributor recommended]. Question popularity: 3 [recommend question].