Borderlinx is the perfect way to buy multiple items off online shops if you live abroad, because you only pay shipping once. It is so great because they let you "buffer" items into one big order. Also, you're not bound to just Amazon.
Living in Thailand I often buy stuff on Amazon that I can't get here. Sometimes the vendors won't ship direct so I use Borderlinx as an intermediary. Without fail they do their job superbly. No fuss, everything arrives quickly. Even Thai customs fees are handled for me.
I was very satisfied with the customer service representative who helped me solve a technical problem that was preventing me from releasing my shipment. The matter was looked into quickly, and I was able to pay and release the shipment.