I changed over to a small card holder with zippered centre section by Oroton a few years ago and loved the freedom of a small wallet. I’ve loved how easy it fits in everything. Ive recently purchased a Balenciaga WOC and it feels strange to have an actual full wallet again. I’m not sure how long it will last until I change back to my card holder as I like to switch out my bags often and the WOC is unlikely to fit in a few of my smaller bags.