You can't really rely on credit cards for emergency funds given the recent credit squeeze and it's just not a good practice. (smartsavinginvesting.com)
Don't rely on your credit card issuer for telling you what you can get - you might miss out on some huge savings if you do. (mybanktracker.com)
This isn't ideal if you need money for a trip now, but it's a good solution if you want to build credit over time without relying on a credit card. (badcredit.org)