After forty years in the industry it struck me that I am doing the same work for the same customers over and over.

In the early days we were printing invoices on daisy wheel printers with carbon paper, then it was dot matrix that allowed bold printing, then it was lasers which introduced proportional fonts, then it was colour printers and graphics, then it all shifted to email and PDF’s.

Fundamentally though it’s just a request for payment.

Of course you could stick with the legacy systems but customer expectations have moved on.