Travel using credit card

You know if you are going for travel its always best to have credit cards with you. Who knows you might want to buy something. The other day my friend was telling me that her dad and sister going for holiday and they didn't bring enough money.

So her dad was lucky to have credit card. It's good to spend but you must also know how much you are spending.

Tell me do you prefer to shop using debit card or credit card?