No this isn't another scam, its something I have read on the Fool.co.uk and have done myself for quite a long time.

Basically there are many 0% interest free credit cards out there trying to lure people who ring up large credit card bills over to them. If you are clever you can make the most out of this introductory rate, as long as your are strict with your finances.

Here's one example of what I do.

• Get yourself a good credit card with a 0% interest free rate on purchases and balance transfers for a year or more (if you can get it)
• If like me, your work pays for your travel expenses, start putting all of your travel expenses on your credit card.
• When your work pays back your expenses, place these in a separate high interest savings account or a cash ISA.
• When your 0% interest rate ends, pay off the balance in full and keep the interest you have earned and if you want, start the whole thing over again.

Now the above works really well as long as you:

• Are not tempted to use your card for any other expense. This card is only for expenses nothing else!
• Make a note of when your 0% interest rate ends so you are not suddenly stung for interest payments. If you use Outlook or some other email organizing program you can put a date reminder in here so you don't forget.

Good luck and if you have any similar tips I would love to hear from you!