27 minutes ago, dcarch said:A cordless power drill, and a 3.5" x 24" auger ($15) lets me dig a deeeep hole very quickly.
By manipulating the auger, the hole can be much wider than 3.5", 10" or more, depending on what you are trying to plant.
dcarch
or a post hole digger. Amazing how little real muscle they require Stomp don and pull. We have mandatory split rail fences here so post holes are a strong memory. Never hurts to throw a fish head in the hole either