I don't know from where you are typing, but there's an excellent service here in Portugal called mbnet. It allows you to create a "virtual credit card" where yo

I don't know from where you are typing, but there's an excellent service here in Portugal called mbnet. It allows you to create a "virtual credit card" where you define a limit and the bank generates a credit card number for you with the amount you specify and with the validity of one month. I wouldn't make so much online purchases if it wasn't for this service. Another service that would be great would be something like mint. I imagine it shouldn't be hard for a bank to at least categorize the expenses so clients could have a better picture on how they spend their money.