The first thing is to replace or upgrade the existing payments systems, ACSS and LVTS, to carry more information in order to move to automated processing, and the second thing is for governments to require—which is something that a number of the Scandinavian countries have done—all suppliers to invoice them electronically and receive payment electronically, and to make all their payments to benefit recipients electronically to the greatest extent possible, recognizing that some people just aren't in a position to accept them.
Evidence of meeting #20 for Finance in the 41st Parliament, 2nd session. (The original version is on Parliament’s site, as are the minutes.) The winning word was consumers.
A recording is available from Parliament.