That way you could have a nice overview of your transactions. E.g. You receive bankstatements per month. You could sort all entries for this month in one page. At the end of the month (or whenever you receive it) your bank statement and that page would be look-alikes, which makes it easy to reconcile (manually). I think it would also be handy for cash statements . One physical and one digital cash statement per day for example. I think it helps making auditing and doing double checks easier within less time. Don't you?