Mr. Monk is Someone Else - S8-E4
Continuity mistake: After the FBI agent asks Monk to go undercover, Stottlemeyer puts his hands on Monk's and Natalie's shoulders and starts escorting them to the door. When the shot cuts to a wider angle, he does this over again. (00:06:05)
Mr. Monk is Someone Else - S8-E4
Continuity mistake: When Monk shoves Harold Krenshaw, there are two ships sitting in the harbor in the background. Later, when the FBI shows Monk photos of the incident taken from the exact same angle, the ships aren't there. (00:27:30)
Mr. Monk is Someone Else - S8-E4
Continuity mistake: In the hotel, when Monk sits down next to Lola, the couch pillows change positions between shots. (00:15:10)
Mr. Monk's Favorite Show - S8-E1
Continuity mistake: Near the end when Monk is doing his usual "Here's what happened" speech, he hands an envelope to the dad. A few minutes later he walks away from the dad, who still has the envelope in his hand. Immediately, the shot changes and Monk, who is not near the dad, has the envelope.
Answer: Notice also that in the opening credits scene when he is touching parking meters her also wipes his hand on his clothes each time he does it.