One step evolved from the Jump to Conclusions mat (remember Office Space?) is the Do Not Disturb sign/doorstop designed by Propaganda. Sweet and simple: If you don't want to be bothered, use it as a sign. If you are accepting visitors, use it as a doorstop.
Don Lehman is a Chicago-based industrial designer and the founder of More/Real, a startup focused on making technology feel invisible. More/Realâ€™s first product, Stylus Caps, turns common pens and markers into touchscreen styluses.
Don has been honored by the IDSA, featured in the CES Innovation Showcase, and his design for the Contigo Autoseal Travel Mug was named by Bloomberg Businessweek as one of the 50 Coolest Designs of the 21st Century. He has contributed to Core since 2001, first with his column, "The Student Life", documenting his design school years at RIT, and since then posting news and columns.