"Garage Sale" is the nineteenth episode of the seventh season of the American comedy television series The Office and the show's 145th episode overall. It originally aired on NBC in the United States on March 24, 2011. The episode was written by Jon Vitti and directed by series cast member, Steve Carell. The episode marks Carell's third director's credit for the series and the final physical appearance of Amy Ryan, who appeared as a regular since "Classy Christmas". (She makes a voice-only appearance in the episode "Goodbye, Michael".)

In the episode, Michael Scott (Steve Carell) decides to propose to Holly Flax (Amy Ryan), and runs into trouble thinking of how to do it well with his expensive diamond ring, so Pam Halpert consults several coworkers to steer him away from dangerous ideas. Meanwhile, Dunder Mifflin Scranton's warehouse and crew hosts a public garage sale.

"Garage Sale" was met with critical acclaim. Furthermore, HitFix reviewer Alan Sepinwall wrote that the episode could have served as Carell's last episode. It is considered one of the best episodes of The Office. According to Nielsen Media Research, the episode was viewed by more than 7 million viewers and received a 3.4 rating/10% share among adults between the ages of 18 and 49 which marked a slight rise in the ratings from the previous episode, "Todd Packer".

Michael Scott decides to propose to Holly Flax, and having procured an expensive diamond ring (which cost what he believes is the traditional three years' salary), pours gasoline in the parking lot in the shape of letters, planning to light them on fire and show it to Holly. Pam Halpert stops it and gathers a meeting of Michael, herself, Jim Halpert, Ryan Howard, and Oscar Martinez. They believe Holly is "the one" for him and give him anecdotes and ideas. He calls Holly's father to ask his permission, and leaves a message when he does not answer. Holly catches onto the idea when she calls her parents herself, but she notices her parents seem mentally disoriented. She talks to Michael and says she wants to move back to Colorado to be there for her dad, and Michael supports her decision. Holly seems to be gearing up for a proposal, but Michael abruptly leaves, not wanting to be proposed to in such a casual way.

Dunder Mifflin Scranton's warehouse and crew host a public garage sale. Dwight Schrute attempts to walk away with the most expensive item by beginning with a thumbtack and trading up with his office mates. Jim claims he bought a packet of "miracle legumes" from a mysterious man in Jamaica. Dwight initially believes Jim is trying to prank him, but is astonished when they reappear after Jim seemingly destroyed the packet. He trades Jim a $150 telescope for the legumes. Dwight plants and waters the seeds and Jim secretly replaces the pots with full-grown plants.

Andy Bernard, Darryl Philbin, and Kevin Malone play and bet on the Dallas board game, which Kevin had for sale. As the instruction booklet is not with the game, Andy and Darryl make up the rules as they go along; when Kevin objects, Andy simply claims "that's Dallas." Eventually, Kevin notices the money they had bet on the game is missing, and storms out. As Darryl and Andy look at each other in confusion, Kevin reveals to the cameras that he has the money, stating, "And that... is Dallas", mocking Andy's statement.

Michael takes Holly on a walk through the office, pointing out the locations of various events throughout their courtship. He opens the door to the kitchen, revealing all of the other employees holding candles. Various members of the office ask Holly if she will marry them and she politely declines each one. Michael then leads Holly out to her desk, which is surrounded by dozens of candles. Michael gets down on his knee and begins to make a speech when the fire sprinklers go off due to the burning candles. The water drenches everyone in the office and Michael proposes. Holly accepts. Everyone then begins to congratulate Michael. However, Michael announces he is moving to Colorado with Holly, leaving his employees in shock.

Coupled with the fact that it was the start of Steve's departure and it was my own, yeah, there wasn't a dry eye in the house — literally, from the water pouring down on us and from our emotions. But it was a beautiful night ... We did it in two takes, but it took the crew quite a bit to vacuum up all the water with these big power vacs and reset everything as we stood by in robes, shivering.