A collection of examples for the HTML <picture> element, from the basics through to complex real-world uses.
A collection of front end toys, the first being a highly configurable, fun, responsive grid system! This site (and many of the sites I have worked on) has used Crystal. With support for as many breakpoints as you need, variable gutters, limitless grid ratios and more – and it only generates those classes you need.
A replacement set of icons for the Adobe Creative Suite. Designed to work from 16×16 all the way up to 1024×1024. Free for non-commercial use.