In the Christmas specials, what kind of sales job does David Brent have?

In the Christmas specials, David Brent works as a travelling salesman of cleaning supplies.

After being made redundant from Wernham Hogg, Brent has not become the successful entertainment figure he imagines himself to be. In the Christmas specials, he earns money as a travelling salesman selling cleaning supplies while also pursuing nightclub appearances and a music career. The contrast is deliberately comic: Brent presents himself as a celebrity and natural performer, yet his ordinary sales job remains his practical source of employment.

The two Christmas specials form the finale of the original British series. They were broadcast on BBC One on 26 and 27 December 2003, three years after the documentary filming of the main series. Brent repeatedly returns to the office because he still wants attention from his former colleagues, despite no longer working there.

The answer is not paper clips, computer software or office furniture. Those options fit the broader office-sales world of Wernham Hogg, but the specials specifically identify Brent as a travelling salesman for cleaning supplies.