Recently found 2 nice options for Etsy's shipping labels - you'll find them under Shipping Labels and then the option tab.
One is you can add your name in a signature box and Etsy Shipping Labels will print that out automatically with the current date - now I don't have to scramble/fret when I forget to sign the customs form.
The other is you can add a default description for what's in your package. I find that helpful because my international orders generally are the same item. However, you can edit it when you print a specific label that is something different than the default.