Hi Johnny333,
thus based on my profile, two cards are ideal - one to take care of neccessary expenditures and the other for discretionary expenditure both of which give me the maximum rebates in the market today
I didn't go out to collect credit cards just so happen to end up with so many.
Other than the credit cards also had Kris frequent flyer & a United Air card
Nowdays one card is more than enough since I'm getting all those loyalty points accumulated in one card. Very difficult to track so many cards & points. I carry a backup just in case there is a problem with one card which happened when I was in the US, the merchant forgot to reverse the charge after I returned the rental. Another occasion, one of my cards had a problem with the magnetic strip.
Amex is a bad card to rely on if you're in the US. The merchants there often decline that card because of the cost & hassles from Amex,
Carrying too many cards is a problem if you loose your wallet. Just imagine having to inform so many banks of the losses
Must also be careful when travelling in SE Asia as there are cloning gangs. Easier to track card usage on 1 to 2 cards. I usually carry cash & use the cards as a backup.
A Citibank ATM card is also good to have as they have branches in Jkt & BKK