One Companion Pass to Rule Them All
The Southwest Airlines Companion Pass is one of the best values in the points and miles game. If you play your cards right, you can earn buy one get one free status on Southwest flights for up to two years without worrying Southwest is going to try to screw you over with basic economy fares!
To take full advantage of this amazing deal, its best to earn the Southwest Companion Pass early in a calendar year. So, if you're thinking about going after it, I'd get a move on. Current bonus mile offers on the personal and business Southwest credit cards through Chase are 50,000 and 60,000 miles respectively.
Of course, this deal may not last forever, so you may want to reconsider, if you were thinking about waiting another year or two to take advantage of this offer.