Credit cards: How many are too many?

BankBazaar.com 

Credit card companies come up with tempting card offers for investors albeit now more cautiously after the financial markets turmoil, by offering freebies such as life time free credit among other things.

Customers already possessing credit cards often find themselves taking up such offers and ending up with multiple credit cards.

The moot question here is, should you be content with having one credit card or does it make sense to have multiple credit cards and if so, then how many are enough?

Let's understand what the benefits and pitfalls of having multiple credit cards could be.....