I would love to get a report each month per customer of their unbilled activity (time I spent but did not charge for). I do this quite a bit unfortunately and I have to download each report monthly (which includes billed AND unbilled) just to see how much time I spent and what it would have cost them. I then manually add this report and type it into their bill each month so they can see the value in my time.

It would save me so much time (and others I'm sure have this same problem) to be able to have a report which showed ONLY unbilled activity that I could set to run each month.

It couldn't possibly be that difficult to set up a report like that. Just take the report you have already and just don't include billed...very simple.