Printing manifest for USPS

[herrick1978]

My postal worker asked me today if I would print her out a daily manifest sheet from my shipments.  She's asked this before and I've never been able to quite understand what she wants.  She said it would be a summary of what I printed for the day, and she'd only have to scan that sheet for it to post all the labels/tracking.  I'm befuddled.  Does anyone out there utilize this daily summary for their post office?  I use the eBay/USPS labels only for shipping.  Thanks!