When my kids were younger they used to make some win­ter money by shov­el­ing snow. They’d march to the garage, pil­lage my shov­els and work their way down the road clear­ing dri­ve­ways. As the day pro­gressed they invari­ably met with other entre­pre­neurs and set­tled own­er­ship of the untouched dri­ves with an impromptu snow­ball fight. Tools tossed […]