Sometimes, in a long play session, it's easy to forget what was handed in, and it would be nice, before we log off, to be able to check the log and see what we accomplished. A list of everything we handed in and the values we got for them. Sometimes I log on, and I forget to take note of how much gold I have, and then eventually I hand something in, and if I don't keep my eyes glued to the top right hand corner of the screen, then I'll have no idea of how much I just made, which is unsatisfying.
I agree completely with this idea that this reddit user shared and wanted to also share in the Official Forums this idea they shared.
Personal idea: A journal in the merchant area that one can look at and see all they have turned in at each one of the merchants.
Paraphrased from post on Reddit user TheDrkstknight
Source:(https://www.reddit.com/r/Seaofthieves/comments/a04trg/session_log_of_items_sold/)