In general, pensioners wash far too often and this has a deleterious effect on the skin’s natural resistance to infection, abrasion and pollution.

A bath or shower once a month is more than sufficient for most pensioners, and adopting this regime not only reduces the chances of disease but also saves the average person £183 a year on soap, bath foam and assorted unguents.

Obviously, anyone who spends a lot of time immersed in agricultural slurry or mixing with members of the shadow cabinet will need to bathe more often.