If you’ve ever thought your business credit card was just a bill-paying box tick, Michael Simon would like a quiet word. The Carcierge founder runs his entire operation on the American Express® Platinum Business Card – and in his words, he “genuinely couldn’t run the business without it.”
For context, Carcierge is no small side hustle. It’s a premium annual membership service that takes over every aspect of car ownership for clients – from fueling and servicing, to…

