How a $40 fee became a lesson in LTV

In 2024, American Express card members spent roughly $1.5 trillion. To put that in perspective, that’s around 6% of the entire U.S. GDP passing through a single card network.

When Amy Gindikin at down with me to talk about her experience working on the lifecycle team at American Express, I expected to hear about high-level data models and massive budgets. Instead, she shared two important lessons about a $40 baggage fee and a philosophy she called "Project Marie Kondo.”

One of the most surprising insights the Amex team uncovered came from Delta airport gates. For many travelers, the most compelling reason to sign up for a Delta/Amex co-brand card in that moment is the $40 savings on a checked bag.

On paper, the acquisition numbers were a goldmine. But the data revealed a "gold nugget" that changed their strategy: Card members acquired in the airport were some of their lowest-engaged users. They weren't engaging with the full value of the card; they were just trying to solve a “transactional friction point” and avoid the baggage fee.

The problem was that this acquisition flow kicked off a simple welcome journey that was really just a confirmation of the sign-up. There was no value realization bridge to help the customer understand all of the other perks that Amex offers through this co-branded card. So the team went heads-down to redesign this onboarding process and to re-educate these new cardholders on the holistic value of the card after the airport moment and shift their mindset away from “I have a card that saves me $40.”

The lesson: If you don't understand the intent behind that conversion, you’re likely building a relationship that's doomed to fail.

The second higher-order problem Amy faced was operational scalability. As the onboarding team, they were managing journeys for more than 20 different card products. The standard approach had been to build "intricate" journeys for every single one. But anytime the terms and conditions, interest rates, or product changed, the system broke. The team was spending all of their energy trying to maintain dozens of bespoke, hard-coded email flows, which meant they couldn’t solve other “airport trap” type problems.

This process was sabotaging their ability to drive meaningful outcomes and deliver more value to their customers, so Amy launched a strategic initiative called “Project Marie Kondo.” The goal was simple: create a framework that worked across all 20 products. So instead of managing 20+ bespoke journeys, the team moved to a modular system where “fine print” and deep product details were moved out of messages to dynamic off-site pages, which could be updated more sustainably, allowing the team to start focusing on the few specific moments where custom messages and personalization actually moved the needle, while still ensuring that the entire system was modular.

The lesson: Operational debt kills growth and experimentation.