An addiction, that each Zodiac is likely to have.

Sagittarius: Gambling
Aries: Caffeine
Gemini: Smoking
Pisces: Alcohol
Leo: Shopping
Aquarius: Video Games
Libra: (Sleeping) Pills
Scorpio: Internet 
Virgo: Cleaning
Taurus: Eating
Capricorn: Working
Cancer: Addicted to another person