JDSU fiber inspection kit (FIT-S105 Pro)
Clean your fiber! I can't stress this enough. As optical speeds skyrocket, so does their sensitivity to contamination on the fiber faces. Getting a traditional fiber microscope into a floorpit or patch panel is next to impossible, but the JDSU Fiber FIT-S105 Pro remote probe gets right in there without having to take the patch panel apart. Clean and inspect because some contamination is oily (fingers especially) and won't clean with just a wipe. See it in action at Interop.