I sometimes bring my friend along whilst mining void opals for the extra protection/cargo space. At the end we tally up the total opals and other expensive minerals against online spreadsheets of current prices. We then go through a messy ritual of dropping/picking up cargo until our inventories are about 50% total value each.
Honestly would be great if I had an option to either directly pay him, or for him to automatically receive a % cut OF MY CHOOSING (aka 50%) of anything I sell/anything he sells so we can just pick anything up until we're both full and know the credits are split evenly.
Heck even just an easier way to transfer cargo to another player would be great. Cargo scoop is a pain in the rear.