In reply to JJL:
I was digging out a tree in the front garden of my old house when one of my neighbours (a builder) popped over and said "what you need is this" - a digging bar made by welding a spade head onto a 6' scaffolding pole. Went through the roots like they weren't there.
Wished I'd had a decent set of power tools when I was working for a month in the middle of nowhere in Kenya, but actually quite refreshing doing things all with hand tools - would have preferred some better quality ones, though (i.e. a screwdriver that twisted the shaft rather than the screw).
As someone else said, I've bought tools as I've needed them - assuming I couldn't source them from my Dad's garage. Also inherited a fair few from my Granddad/Grandpa.