eBay

I really don't understand promote listings and the costs associated with it, I guess that's why I don't use, I really do eBay as a little side hustle, I am retired and like to stay busy by selling on eBay.

I have a $5 Bill UNC Binary Note QD 77999979 A for sale, I am really having a hard time setting a listing price ( Buy it Now) any suggestions.

what does it mean when I have a watcher looking at my listing??

I just started on ebay, should i ship my paper currency with free shipping, will it help my sales?