There was a time when Varnishing Day was the day set aside in academy exhibitions for the artists to put the finishing touches to their paintings. It rarely involved varnishing, which needs at least a year of drying before being undertaken (learned that one the hard way) could take a lot longer than a day, is best not done in the vertical anyway (also learned that one the hard way.)
Today is varnishing day for me. I shall be very sticky by later this afternoon. Not to mention somewhat flammable. Wish me luck.