2 things can be added to the packing slips to be more helpful for us and I'm sure many other companies.
1. A subtotal line/field would be great. We basically use the packing slips as our sales receipts and it makes it easier for entering when there are multiple items on the slip.
2. The packing slips do not have be a full page. Please make an option to print 2 orders per page. This saves A LOT of paper and space. ShipStation did this for us and we loved it.