[make, earn] a living, [earn] a crust, bring home the bacon, make some dough, earn one’s [keep, salt, corn, bread and butter], [make, earn, gain] one’s [daily] bread, earn one’s [bread, living] by the sweat of one’s brow
Contexto
«The role of a medic on expedition has many faces, from doctor to chef, photographer, teacher, pot-washer, latrine-digger and counsellor. You have to earn your salt as a fully-fledged team member, which means being able to fulfil all of these roles and comfortably complete the expedition itself.»