Coffee maker (Lorelai rejects a German-made one because in her mind, Germans are all Nazis!)
Stapler and staples
Post-It notes (Richard buys a pack for Emily, who uses them to remind her of upcoming events)
Richard has been in business for over thirty years, but he has no idea what office supplies to buy, or even how to go shopping for essential items. That was a task that women always did for him – his mother, his wife, his secretary, his maid, and now, his daughter is helping him. At least this time Richard is along for the ride so he can see the process in action.
(The fictional business where they buy the office supplies is called Office Barn.)