I received one of those offers where you get 50,000 points for spending $2000 dollars in the first three months. Does anyone know if my husband and I each can sign up for a card? We'd pay our typical bills and such on the card, pay it off right away since they are monthly expenses, earn the points and then use them to purchase flights? We are a family of 4, so we could each book 2 flights. Does Southwest allow you to pay the difference if you don't quite have enough points? I've never flown with them, but looking at prices and the offer that I got in the mail, 50,000 isn't necessarily enough- depending on the cost of the flight. My apologies if this is a re-post...I didn't see the answer to this question already posted.