New Arrivals Maestro

This is a very simple app with a narrow focus that performs exactly as it should. Well worth the small monthly fee to save a good amount of time.

There are a few different settings you can use to tailor it to your needs, but in general it flags items as new for a length of time you determine, then unflags them when that time is up. I created an auto-collection for New Arrivals that includes anything with a "new" tag.

Then you're good! Set and forget. Love it.