When Doug is getting ready for bed, he takes his watch off and sets it on the nightstand. Then two seconds later he is taking it off again.
When Arthur, Deacon, and Kirby are in the men's room the stuffed toy that Kirby is holding shifts between him holding it by his side to him cradling it in his arms.
There are 2 scenes where the shadow of the boom mic is visible. The first is when Deacon is telling Doug what Carrie said. The shadow crosses the kitchen cabinet. The second is when Carrie feels Doug's back and tells him that he's sweating. The shadow cuts across the blinds.
It's readily obvious, but all of the foliage is typical Southern California species. Particularly the tropical plants, bamboo, and palms.
In the roller-coaster line Doug and Carrie see Mr. O'Boyle in line as well. He introduces his two boys, who seem to be close in age. In episode 19 from season 4 entitled "Screwed Driver", O'Boyle says he has two kids, aged 16 and 2. The boys in this episode are not that far apart in age.