Technology

I have a credit card, a debit card, and a savings card. But essentially they can all be just used interchangeably and you don't really have to worry about it.

The big difference between a debit card and a credit card is that you don't have to have the money in the account when you make the purchase with a credit card. But you can just think of it as a debit card and just use it like that, and not worry about the short-term zero interest loan options that they offer.

I don't really use the savings card for anything, I in fact don't know where it is, but it's essentially just a debit card with a limited amount of money. They're often used by kids whose parents top them up every now and then. As an adult they're a good way to keep a handle on your accounts and prevent you from accidentally overspending. Although obviously you can just transfer obscene amounts of money into it, so you have to have some self-control or it doesn't work.

Steam will take all of them.

As far as trusting the card companies goes, I don't really trust any of them but I also don't think they're going to sell my data, there would be too much of a scandal if they did that.