There are plenty of articles online about the different things you can do with a Raspberry Pi. I recently bought a new one from Adafruit and I wanted to write down the steps I took to create a baseline configuration for future projects.
Setting Up Rasbian
I downloaded the latest version of Raspbian and burned it to a new micro SD card. I plugged that in along with some peripherals I bought:
The Raspberry Pi 3 actually has built-in WiFi but I thought I'd have a stronger connection using an external USB adapter.
After booting for the first time, I wanted to get rid of the default
pi user. To do this, go to the start menu, open "Raspberry Pi Configuration" under "Preferences" and turn off the "Auto-Login" option. Then open a terminal and create a password for the root user: