Toby's daughter "Sasha" was in the Girl Scouts before this time. In "Stress Relief Pt.2", Toby makes Dwight order Girl Scout cookies from his daughter if Dwight wants him to sign his "Regret form".
Darryl states that he has been selling his daughter's Girl Scout cookies to the office for 5 years. He also states that Kevin was a relatively thin man when he first started selling the cookies. 5 years ago would have been around season 3 of the show, and Kevin was significantly overweight at that time.
(9:30) When Jim comes in to talk to Dwight, Cathy is sitting at the table to Todd's right. The shot switches to Dwight to talk about toilet paper, then back to Jim and Cathy is now standing to the left of Gabe.
While supposedly in Florida, Robert California drinks a bottle of Poland Spring water. Poland Spring is only sold in the northeast.