The Ship of Theseus
There are two approaches of buying tools and supplies, JIT and hoarding. My father had the JIT (Just In Time) system in place. Being a weekend warrior, he would buy the tools and supplies for the weekend project during the week, anticipating the work on Sunday. Him being raised in the 60s, he never over-consumes, if he needs a drill, he would buy a drill, not the whole set on discount (with useless tools), just the drill. Same went for drill bits, if the job required a 6mm drill bit, he would buy just one, use it, never sharpen it, and throw it at the bottom of the tool box. Early on, having inherited some of his tools, I also adopted this JIT system of working. However, as I was enduring in more weekend projects, I realized that often times I needed multiple tools at the same time. Further more, it's difficult to predict which tools one would need in advance, especially considering my lack of experience at that time. So I often opted for improvisation, if I needed a 5mm whole, I