How many credit cards u own?

Today went out with my friend.
I notice she have lots of credit cards. Lady card, DBS black card, taka visa card, everyday mastercard, platimum visa....just to name a few...
When i ask her, she told me cos each card is for diff purpose....i was like WTF...
My credit card, one card rules everywhere....lolz....
Do you think one needs so many credit card?
How many credit cards you have?
Credit and debit...which one u prefer to use more?
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