To the hardware store to restock some of the kit. Always restock the central bits in the big cities. I've walked a mile and back with luggage on a layover once to visit this hardware chain, as it has the perfect bath brush for travel.
Being the type of person who would walk two miles for a decent bath brush is a a substantial and uncontroversial virtue, I hope. One doesn't always have to whistle Col. Bogey's March on the walk, but it does help.