Have Coworkers Fill Out A Day Planner
It can be overwhelming, after years of keeping a strict schedule, to suddenly have to manage your own time. Give a new retiree the gift of structure by having their coworkers fill their schedule for them. It will be nice to have a slew of activities to fill their suddenly voluminous free time, but the best part may be the satisfaction of blowing off people who have been annoying the crap out of them for years.