I am a big fan of anti fatigue mats. It's one of those things you can't live without once you discover it, and I now consider it a kitchen necessity. They also work great in other rooms such as the laundry room, the garage, studio, bathroom, and anywhere you find yourself on your feet for extended periods.
I love the eco friendly Imprint Comfort Mat. Formerly known as Sublime, the Imprint is a new improved version which is thicker with even more cushion. This relieves pressure on the lower back and knees. It would be well worth it to take one to work if you have a job that keeps you on your feet.
As the name suggests, it conforms to your feet leaving footprints behind. Formaldehyde and Phthalate free it won't off-gas harmful chemicals into your home and it absorbs sound as well as shock. Sublime Imprint has an eco friendly non-toxic patented design which sets it apart from the other mats. They come in different colors and patterns to match your decor. Highly recommended, find it HERE.