What are 10 things you should know about your girlfriend?

Depends on the age of the couple, their station in life, and the goals for their relationship. That means a 16 year old high school student is going to need to know very different things than a 40 year old man looking for a wife.

But every man should know a few basics about his woman:
  1. What things make her happy?
  2. What things piss her off?
  3. What are her goals for herself for the next five years?
  4. What things does she need from you to make her feel loved?

With those four categories covered, you can start creating a FANTASTIC relationship at any age, and fill in the details with more specific data later.