I am trying to come up with a template for expenses. We have 3 sources of
shared expenses with 6 people. 1 person pays for 2 people , Another pays
for 3, and the last pays for 1. . Two of us cover the expenses while we are
waiting for a 3rd to be able to share his expenses. Want to be able to keep
track of what the two of us owe and what the third still owes.