Secondly. Never, never, never spend any money on card to which you transfer a balance. This is because, your monthly payment is always put towards paying off transferred balance. This means that you will pay interest on everything you spend, even if you pay off as much as you spend every month.

Finally, make sure you know and write down date that balance transfer period ends. Better still, set an alarm on your mobile phone or PDA for seven working days before expiry date. That will give you enough time to pay off balance before interest free period ends.

Follow these simple guidelines and you can surf from credit card to credit card and never pay any interest on transferred balances.

Thirdly, consider taking financial advice from a qualified financial advisor. If you go to one who charges a fee for there services rather than earning commission on investment products, you can be sure of unbiased help. Even if you think you know exactly what you're doing, a financial advisor will often point out details that you hadn't considered.

Finally, make sure you read terms and conditions of your new mortgage. It may seem like a good deal but if it turns out to be less flexible in long run then it may end up costing you more than you save.

As long as you tread carefully, and get good advice, re-mortgaging is an excellent way to save money on your mortgage.