As far as I know, when someone writes a message on your profile, you are instantly notified (just like I was just notified that I had an unread Profile Comment), if you're logged on, and you are notified when you log on if you have unread messages. You shouldn't have to check everyday.

You can keep replying to me if you have other questions and I'll be notified that you are writing messages on my profile.

No problems at the moment. Just received you PM reply and thank you very much.
I would have replied but I have used my quota for today..

Yes, one question. You told me you sent a profile message so I came here to read it.
Is there a notification somewhere or do I need to come here everyday to check?

Do you have questions, but can't use Private Messaging at the moment?