For fixed blades, I tend to use Sentry Solutions. Aplied over the entire knife (haven't yest used the Kumo, but I'd use some leather protetant on the stingray skin)
For folders, I've used 3-in-1 in a pinch, Sentry Solutions and Chris Reeve Silicon Lube. Nothing truly special.
For a polish and shine, Flitz or Metal Glo works great.
The CR Lube is available at his webpage.
Flitz is available places online, sometimes at Home Depot or Kmart.
All else is at Bladeforums favorite, New Graham Knives.
Hope this helps.