Thanks Moondog. But if I'm limited to paying either my debit card, cash or a Chinese credit card at the grocery store or on Ctrip, wouldn't it make sense to get some sort of return on those purchases, since I can't use my US-based points-earning credit card (and ctrip charges something like 3% to use a foreign credit card), even it it's at a rate of 1 point per 15 RMB? Seems like something is better than nothing.
-Kevin