Tuf-Glide is NOT expensive. (Sigh) When will you little rascals learn that you (with very few exceptions) are paying for the container, not the product.
Tuf-Glide requires a rather expensive half oz. capillary tube applicator to apply. This costs a lot. You can get an 8 oz. refill bottle (16 times as much) for about twice what the applicator bottle costs. This brings the cost down to a few pennies per application.
Brian Skelton of Discount Knives has the best prices that I have found. URL:
http://www.discountknives.com/index.html
He offers the half oz. applicator bottle at
$6.25, and the 8 oz. refill bottle at $14.93.
You can try the Smooth-Kote lube if you want to, but you should realize that while it really does slick things up, it has MoS2 in it, and this stuff is black, and gets on everything. I use it on the slide rails and other high stress/pressure areas of my 1911's, but I always end up with black fingers after shooting.
If I wanted to slick up the pivot pin of a knife I would be concerned about staining clothing, I would use a white Li grease.
Hope this helps, Walt