Michael says he's donating his money to Comic Relief, even though it no longer exists. This was an homage to the original British series, where an entire episode (#2.5) was devoted to raising money for Comic Relief (which as of 2021 still exists).
Realtor Carol is played by Nancy Carell- Steve Carell's real-life wife.
First episode Steve Carell wrote for the show.
Creed is shown stealing a candy bar from a vending machine. This a bar made by Gertrude Hawk Chocolates, a company founded in Scranton.
Creed mentions the excellent pea soup at the soup kitchen. He would be referring to the St. Francis of Assisi Soup Kitchen at 500 Penn Ave. in Scranton (right across the street from the Penn Paper building shown in the opening credits of the show).