It would be nice to be able to associate accounts with credit cards, for example, tag Amazon in the credit card or tag the credit card inside the Amazon account/password.
This way we would be able to know which accounts uses which credit card and vice-versa, know which websites uses which credit card.
So when we change/upgrade our credit card, or if we lose it or it gets stolen, we would be able to know where to update our payment method faster.
Maybe with something like a tag system, for example in the credit card having a field that searches in the accounts and we can simply search and tag. No need to have any functions between both, simply a "has and belong to many" relationship. Credit cards could be associated with multiple accounts, and accounts could be associated with multiple credit cards.
