Did you know that you can create a note on an item record that will be displayed on check-in? And even better, you can do so right from the patron's item list.
This feature makes it fast and easy to address situations like defective cartridges or "I just realized I sent that back in the wrong case!" The next time you get that sort of call:
Find and select the item on the patron's Items tab.
Use the Pencil icon or Ctrl+O to open the record for modification.
There is a Notes field in the right-hand column, just after the Barcode. Fill in your desired note and Save the record.
When the item is scanned into Interactive Check-In, the Note will appear as you entered it. Once dismissed, the Note is removed--no need to manually delete it.