I use my credit card constantly, for everyday purchases and find it a very handy method of paying for things. The trick is of course to ensure that every month when you get the bill you pay the entire amount, that way you won’t be hit with interest charges which can soon get out of hand.
If you cannot always afford to pay off your entire card you should look at some of the many low interest credit cards that are available. Certainly worth looking into as a lot of money can be saved if by changing credit cards you can sort out a lower interest rate.