Ask HN: What is in your wallet? Making the best “second factor” with U2F & RFID

Hello

I'm building a custom wallet for myself + friends, and wanted to know what you would like to see yours.

A wallet is your "something you have", and should be the ultimate second factor for auth and life.

So far, we've decided that the wallet should:

1. be very slim 2. have an inbuilt U2F token 3. have an inbuilt programmable NFC chip for vCard (chip suggestions?) 4. have an inbuilt RFID for Keyless entry systems (chip suggestions?) 5. hold upto 5 ID/Plastic cards 6. hold upto 5 business cards 7. hold cash 8. hold a guitar pick

What do you keep in your wallet?

Stay updated: https://goo.gl/forms/FAL68JQ9vzita8d32