Prencils

I use a carpenters' pencil A Lot.
Often my family will have to remind me that I have one sticking out of the band of my baseball cap behind one ear in public because I habitually stuff one up there without thinking about it. It's like a part of my super-suit and I feel kind of naked when I reach back there and it's not to be found, but that's beside the point.
The point is that I use them until they are just bitty little pencilettes and while I have developed quite the knack for whittling the fact remains that every so often I gash myself but good sharpening them or snap the lead on the cheap one's.

For the life of me I can't figure out why nobody has made a paper wrapped carpenters' pencil with a pull string like the old wax pencils have.

This would allow the pencil to be used almost right to the nubbin without sharpening at all. Simply rub the flat edge of the newly exposed lead on almost any surface to get a razor sharp tip and leave the razor knife in the back pocket where it belongs as another accessory of the super suit.