Credit cards should have our e-mail addresses tied to them so that we can get receipts e-mailed to us and instantly be aware of fraud.

Edit 1: It would also make it easier to keep track of your expenses.

Edit 2: Apparently this already exist. Maybe I need to look into it at my bank. I can go online and view my transactions, but typically there is a lag. I can also only view the name of the transaction and the amount. Being sent an actual receipt could be a lot more useful because it would provide an easy way to return a purchase and it would allow me to see what was the money was actually spent on.