RWD is about more than screen size. Devices abound, and some have odd restrictions. Not to mention the varying needs of your users themselves. Without a keyboard, can they still say yes? Can they still ask for help? Can they buy?
Constraints is a project to help me explore the ways in which web designers get better at what they do.
I'd love to hear how you get on with Constraints cards.
Join the Constraints Cards mailing list to hear about new cards, new posts, offer codes and that kind of stuff. Never spammy, never sharing your email address with anyone, easy to unsubscribe. As you'd expect.
Constraints is released under a Creative Commons BY-NC-SA licence, so you are free to share, remix and adapt Constraints.
Constraints started life as a kickstarter project and 663 lovely people liked the idea enough to back the project. See all the charming and talented backers here, you might even see a few folk you know.