The minimum number of credit cards you need to maximize rewards

Last month, my colleague Mike Winters profiled a couple who successfully manage 15 credit cards in order to maximize their perks. Considering the results — the couple recently used miles to fly business class with their son from San Francisco to London — it’s hard not to be impressed. But I’d be lying if I told you that the process of managing rewards across 15 accounts didn’t sound utterly exhausting to me. When it comes to credit, I keep it really simple. Pretty much everything but my rent and utilities goes on one card, for which I get 2% cash back on everything. As a baseline for a credit portfolio,