> . I think about this every time I see someone pull out their massively stacked wallet full of cards. I couldn't live like that. Some folks in this situation

> . I think about this every time I see someone pull out their massively stacked wallet full of cards. I couldn't live like that. Some folks in this situation are likely just optimizing for rewards / points / sign-up bonuses. I've had more than 10 cards at a time and definitely have my financial "house" in order. I get many free several-thousand-dollar trips per year to boot.