Going without a credit card can be a bit of a pain (and is probably not an option), so it pays to be smart about the way you use the one(s) you do have. Try to avoid cash advances and make sure you choose
best credit card for your financial situation.
In your case I would advise a
low interest credit card - preferably with as many interest free days as possible. this way you will have longer to pay off your debts without interest, and if you do get charged interest you wont be paying anywhere near as much (most standard credit cards offer about 17% - 19% on purchases, whereas a low interest credit card usually sits around 9% - 11%.
If you have multiple credit card debts you can consolidate your debts by applying for a
low balance transfer credit card