I do this too for all our cards. I still go in everyday to check but the email notifications are great. Every couple years we get a charge that is fraudulent and I always catch it before the bank starts calling (if they even do that).

On topic, its a great reminder to see say the Netflix charge happened and how much. An example is we subscribed to Viki for a couple months and forgot to cancel. Seeing that charge was a great reminder to poll the house if anyone was still using it.