Regarding the integration of the My Number card and driver's license, I think that the paper health insurance card was sufficient until recently, but if you absolutely have to carry both a My Number card and a driver's license, then integrating them would be beneficial from the perspective of minimalism. In the past, health insurance cards were as big as postcards, so compared to that time, it has become much more minimalist.
I wish passports were smaller
Recently, there has been a lot of talk about integrating driver's licenses and health insurance cards, but ultimately I think that passports should also be made smaller and more efficient. However, since this is a kind of agreement between countries and on a global scale, I don't think it will change easily or anytime soon, but it is interesting to think about it from a design perspective.
If your ID cards are gone, there's only a little left
Once you have all your identification documents, isn't it even easier to choose the essential cards you want to carry in your wallet? Even if you choose multiple cards, such as cash cards, credit cards, and more, Tenuis and Tynd can store enough. If you need more payment methods, you can reduce the amount of things you carry even further by using your smartphone.
"Agility" beyond efficiency
Reducing possessions and making them easier to manage. By not being distracted by unnecessary possessions, you can spend more time on the things you really need to focus on. We see our design as a physical approach to achieving this "efficiency."
Tenuis 3rd Generation
https://solahanpu.com/products/tenuis-third
Tenuis 4th generation
https://solahanpu.com/products/tenuis-fourth