Jordan Moore:
Realising that the web is naturally responsive encourages your thinking to keep your code light. A lot of the work is already done for you when using a mobile first approach. That was my epiphany, I hope it helps you too.
This is along the lines of what motivated my redesign of this site. Every site should be responsive - it’s the web’s nature.
If you want to make a responsive site, start small, start simple, and then work your way out to more complex viewports. Life’s easier that way.