Customers
Eleven shops used to mean eleven ways of writing down a day. Now the evening takings post themselves and Monday starts with a number I trust.
We bill insurers, councils and patients, and every one of them wants a different statement. Tallybook keeps the three apart without anyone keeping a list.
Usage-based invoices used to take two of us a week. Gridwork bills 3,000 accounts now and the only thing we review is the exceptions list.