San Diego based Dave Johnson had a problem: he was due to be using his Raspberry Pi to demonstrate IoT applications using Node.js in a speaking engagement. This meant that he needed to be able to connect the Raspberry Pi to the Internet, and to his laptop, without worrying about network connectivity at the venue. So, how did he do this? Well, he used a combination of an Ethernet cable, Windows network connection sharing and Samba. Set-up in a particular (though not difficult) way, everything would work together as a private network but be able to use whatever Internet connection the laptop could provide. So, all he needed to do was to tether his laptop to his mobile and he could give his Raspberry Pi access to the net! You can read how to do it on his blog.