The new page is here
This focuses on Raspberry Pi 3 with Raspbian Stretch. Originally written in January 2018.
Again, with raspi-config, go to Interfacing Options, SSH. Reference.
It is possible to connect using SSH keys instead of password. More details here.
Set Python 3 as default. Create ~/.bash_aliases file and add "alias python='python3'".
This is a quick reference to useful commands. Most will need to be invoked using "sudo".
Some additional hardware is either necessary or just handy: