Gift Rotation is a simple way to keep track of who each person is assigned to give a gift to each year.
I come from a large family so giving gifts to each other is chaos (not to mention expensive). A few years ago we decided to simplify our system. Now each sibling is assigned to give a gift to another sibling each year.
We started keeping track of this on a spreadsheet, but spreadsheets suck, so I made an app.