More specifically, if the package costs $10.04 to ship (using the online UPS calculator), do they generally charge only the $10.04 or use a slightly higher amount at their discretion and pocket the difference? Prices I pay seem to be higher than they should for a lot of things. Would this be considered ethical, like a tip, or what is the accepted approach?
      Answer1:mostly, it is whatever you can get away with.after all -- you supply the shipping materials, labels, and labor to make the package ready to go and then you either take to to the shipper or call for a pickup. that costs money and you deserve to get paid for it.
      Answer2:Try checking the rates with www.iesexpress.com. They offer up to 50% discounted rates for DHL services.