I'm European too (if you count UK, some don't), and I have way too many cards, like 30+. I've add to trim down to 4 and keep some more in my bag. Tried some of

I'm European too (if you count UK, some don't), and I have way too many cards, like 30+. I've add to trim down to 4 and keep some more in my bag. Tried some of the apps that let you put in the cards and it shows a barcode, but that barcode doesn't always scan on some of the barcode readers so you actually need the card.