Reddit mentions of Imprint Cumulus9 Kitchen Mat Nantucket Series 20 in. x 36 in. x 5/8 in. Cinnamon

It is an anti-fatigue mat and according to the product description, "(it) conforms to the shape of your feet and supports your arches for relief of back, leg and foot discomfort".

I bought this particular one.

The Desk/Workspace:

• GeekDesk Max (78.75")
  
• APC BE750G Battery-Backup UPS (mounted under desk on the far right side with 5" metal brackets)
  
• IKEA Signum cable organizer (mounted under the far edge)
  
• 10 port USB hub (mounted near cable organizer)
  
• IKEA's Aeron knockoff, Markus
  
• Sublime Imprint Anti-Fatigue Nantucket Series Comfort Mat
  
• JVC HARX900 Headphones
  
• Keyboard: Microsoft Natural 4000
  
• Mouse: Microsoft Trackball Explorer, the world's most comfortable trackball - in use for 8+ years and counting
  
• Monitors:
  
  • Center: Dell Ultrasharp 24" (IPS display)
    
  • Left: Samsung 24" Syncmaster
    
  • Right: Gateway FHD2401 24"
    
• Monitor Arms:
  
  • Right: Ergotron LX Dual Side-by-Side
    
  • Left: Ergotron LX Desk Mount (single)
    
• Monitor connectivity:
  
  • Center: Direct DVI (PC)/DisplayPort (Mac)
    
  • Kensington USB-DVI Multi-Display Adapter (DisplayLink)
    
  • Plugable UGA-2K-A USB-DVI (DisplayLink)
    
    PC:
    
    
• Case: LIAN-LI PC-7F ATX Mid Tower Case
  
• PSU: Kingwin LZP-550 80+ Platinum 550W PSU
  
• MB: MSI P67A-GD65(B3)
  
• CPU: Intel Core i7-2600K
  
• RAM: 16GB Crucial Ballistix PC3-16000
  
• HDD: Crucial 256GB M4 SSD
  
• GPU: EVGA GTX 460 Superclocked EE
  
  Mac: 15" MacBook Pro, Core i7 2.5 GHz, 8GB RAM, 256GB SSD
  
  Usage:
  
  I don't have a KVM, but I simulate having one. All my peripherals - keyboard, mouse, webcam, left & right monitors, are plugged into the USB hub. In PC mode, the USB hub is plugged into the back of the Dell monitor, which is in turn plugged into the PC. In Mac mode, the USB hub is plugged directly into the MacBook Pro. I keep both a DVI cable (for the PC) and a DisplayPort cable (for the Mac) plugged into the Dell monitor, and I use the monitor controls to switch inputs when going between platforms.
  
  I know there are software solutions for sharing keyboard/mouse between computers, but I'm generally working on one computer or the other - I'm rarely, if ever, working on both.
  
  I use the MacBook Pro for daily work (Java/web development, Photoshop/Illustrator), and the PC for hobby work (C#/.NET) and gaming.
  
  The MBP is thin enough that I can slide it under the keyboard to get a total of 4 screens. I generally use the MBP screen for Skype & Campfire windows.
  
  EDIT:
  
  T-Rex Themed Art for those interested, clockwise from the left:
  
  
• Drinking With the Dinosaurs from Unusual Cards! on Etsy
  
• But you won't exist until the late cretacious period from Tiffany Ard on Etsy
  
• T Rex by Ryan Berkley on Etsy
  
• Useful Appendages by Miranda Brandon on Etsy
  
• Mr T. Rex by Jon Stich on Etsy
  
  

If you stand for more than an hour you'll want a padded mat for your feet. I have this one and it's like standing on a floor made of soft baby squirrels, but there are lots of other options out there too.

Yeah, I (well, my wife) splurged and got one of these:

http://www.amazon.com/Sublime-Imprint-Anti-Fatigue-Nantucket-Cinnamon/dp/B003BYRDK2