I love “to-do lists.” There’s nothing more satisfying than checking off one completed task after another. More often than not, one item migrates from one month’s list to the next. For many reasons, completing the annual cleaning of Edith Barretto Parsons’ sculpture Duck Baby is added to the list in November and remains on the list in June. It’s so easy to think all winter that plenty of time remains to get it prepared for the spring re-installation. Now the pressure is on.