Well, Earth has one big advantage for sending something back - the atmosphere! Free deceleration and semi automatic landing system (add parachutes & airbags as

Well, Earth has one big advantage for sending something back - the atmosphere! Free deceleration and semi automatic landing system (add parachutes & airbags as necessary)! Just make sure to choose the right entry angle and speed, or else the locals won't like you. Either for burning op their packages or due to delivering them rather too directly to the surface at high speed.