I love the ease and rates of shipping on Shopify. Its much faster then having to use a third party app. Its wonderful that you can now print packing slips right where you create the labels. I would love to see a feature where you can print both the label and the packing slip right on the same 8.5x11. Most third party shipping apps let you do this. It would increase productivity/workflow. For example: Online Labels OL830IF would be nice to see in Shopify's shipping service.