Okay, people, here is advice, straight from my Grammar teacher.

Woman = 1 person, like man.
Example : The woman had to use the restroom.
Women = 2 people, like men.
Example : The group of women met up at a spa.

Then = afterward
Example : First eat, then do your homework.
Than = comparison
Example : He was taller than his friend.

You're = short for you are
Example : You're working too many hours lately.
Your = possesion
Example : You left your book in the store.

We're = we are
Example : We're a great team.
Were = being
Example : Where were you?

They're = short for they are
Example = They're nice boys.
Their = possesion.
Example = The boys brought their lunch to the park.
There = direction.
Example = "Park there," her mother commanded.