Just bored and curious to see what people are using as their credit cards. I recently got a Southwest Rapid Rewards Visa to go along with my Marriott Rewards and Amazon card; all from Chase Bank. I also have a CC from BoA but don't think I'll be using it all that much. I like to travel as much as possible so I got the Marriott card for booking hotels and the Southwest for booking flights. They both kinda intermingle in terms of booking travel options so I'm good either way. I got introductory offers from both for 50,000 points so that's a good start in building up some traveling perks. The amazon one I only got to get their $30 credit. Anyhoo, what do you guys use?