Get serious, who needs a toothbrush? From time to time, I have trimmed off clothing labels, drilled holes in various items, etc. I generally climb and cave in alpine, rather than expedition style, but going lightweight eventually runs into the law of diminishing returns and potential bad outcomes.

The trick is figuring where along the heavy/light spectrum a particular project falls, and equipping appropriately. I expect I will use these as containers for what I call my "core bags," equipment I can carry on fast and light excursions where I am not carrying a back pack, but toting enough that I can get through an unexpected night out.