Igor and UA Fan thanks so much!
I have a Chase Freedom card and will look into other credit cards.
American Airlines travels to lots of destinations so I definitely signed up with them. So you think I should also open a loyalty account with Continental as well? I checked Continental's site and they seem to have lots of partner airlines that we might use like Delta, United, US Airways, Virgin Atlantic and Air Canada.
I'm really curious as to what airline(s) I should funnel any future credit card miles to? Should I just sign up for every airlines loyalty program?