所以，只需带一张信用卡。可以携带一张积分或返现多的，或者一张不收取国际手续费的（我倾向于这点）。
Instead, stick to one credit card. Either one that gets you the most points or cashback or one that doesn't charge international fees (my preference).
与航空里程数或礼物积分联结在一起的信用卡是这个领域里最早使用的手段，但是现在是时候抛弃它们了。
Credit card rewards tied to airline miles or gift points were the earliest players in the sector, but it's time to dump them.
做些研究，发现你是否能用借记卡或信用卡挣积分。
Do some research and find out if you can earn points with your debit card or credit card.
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