A little while back I wrote about my multi-adapter that some clients have coveted in the past. Another item in my laptop travelling kit is this natty retractable ethernet cable by Targus. Wi-Fi despite what the techno-pundits would have you believe is rather unpredictable and reception areas can be like Swiss cheese. If I have the chance I prefer an ethernet socket to hook up my MacBook Pro.
Rather than having a coiled cable that ends up looking like a plate of spaghetti and damaged connectors I have a small plastic block about the size of a fat audio cassette. It makes it a lot easier to pack.
It recoils back into its plastic shell automatically like the power cord on my vacuum cleaner.