I only keep track of how much my opponent $$ shells out at the end of the round.
I've had several friends on a "direct deposit" program for years at my club.
So, I voted for the 'digital' method as I've written my own App just for receiving the right amount of "cash-O'la".....
When new members come looking to take down the Old Guy, I tell them this story.
"Generally when a golfer scores well they have a good day, when they score poorly, they have a bad day.
If they get into my retirement fund, they have a good day, but most often many have very bad days"