New credit card after bankruptcy

Before filing bankruptcy, I wondered how long it would take to qualify for a credit card with decent terms.
Well, here's the answer. Most credit offers were crap for a few months after bankruptcy discharge (and a lot of them still are). Last month, my wife was approved for a $3000(!) limit with a well known bank, no annual fee, and a decent interest rate.
We haven't used it and don't plan on using it except for catastrophic expense (i.e. blown transmission), but it's amazing to know how quickly we were able to get credit.

Luckily, we've learned from our mistakes, but I wonder how many people get right back into credit card debt. We're paying cash for our Christmas gifts, but it'd be easy to put it on credit.