Varnishing going smoothly, coat one on, coat two tomorrow… but the two-component left in the mixing pot will go off before you’ve had time to sand the first coat. Waste of varnish? Maybe not. Put it, and the brush, in double air-tight plastic bags in the fridge. They’ll still be usable tomorrow. (Double bags? Food that tastes of thinners? Not good!)

Thanks to PBO reader John Cotton for this tip