Hi there, 

I can see how having tips and reminders in the form of a pop-up would be really helpful for your business. I know how many tasks a small business owner has to handle, and this would take just one more thing off your worry list. 

At this time, this feature doesn't exist in QuickBooks. I think it would be a really great idea, and I'd be happy to pass along your feedback about it to our product development team for review. We're always looking for new ways to improve the product and make your life easier. 

In the meantime, I would recommend creating transactions under the customer’s profile for you to see the displayed notes.

I'm sure other Community members will chime in with their thoughts and ideas about this as well. 

Cheers.