Sherlock - Season 1

Molly Hooper: "Listen, I was wondering... maybe later, when you're finished..."
Sherlock: "You're wearing lipstick. You weren't wearing lipstick before."
Molly Hooper: "I, eh... I refreshed it a bit."
Sherlock: "Sorry, you were saying?"
Molly Hooper: "I was wondering if you'd like to have coffee."
Sherlock: "Black, two sugars, please. I'll be upstairs."
[Sherlock walks away]

Watson: "What am I doing here?"
Sherlock: "Helping me make a point."
Watson: "I'm supposed to be helping you pay the rent."
Sherlock: "Yeah, well, this is more fun."
Watson: "Fun? There's a woman lying dead."
Sherlock: "Perfectly sound analysis but I was hoping you'd go deeper."

Watson: "Just met a friend of yours."
Sherlock: "A friend?"
Watson: "An enemy."
Sherlock: "Oh. Which one?"
Watson: "Well, your archenemy, according to him. Do people have archenemies?"
Sherlock: "Did he offer you money to spy on me?"
Watson: "Yes."
Sherlock: "Did you take it?"
Watson: "No."
Sherlock: "Pity, we could have split the fee. Think it through next time."

Watson: "That's a skull."
Sherlock: "Friend of mine. When I say friend..."

Watson: "Well, this is a prime spot. Must be expensive."
Sherlock: "No, Mrs. Hudson, the landlady, she's giving me a special deal. She owes me a favor. A few years back, her husband got himself sentenced to death in Florida. I was able to help out."
Watson: "So y... you stopped her husband being executed?"
Sherlock: "Oh, no. I ensured it."

Watson: "What are you doing?"
Sherlock: "Nicotine patch. Helps me think. Impossible to sustain a smoking habit in London these days. Bad news for brain work."
Watson: "It's good news for breathing."
Sherlock: "Oh, breathing. Breathing's boring."
Watson: "Is that... three patches?"
Sherlock: "It's a three-patch problem."

"Try not to start a war before I get home. You know what it does to the traffic."
[to Mycroft]

Watson: "Why didn't I think of that?"
Sherlock: "Because you're an idiot. [Watson looks insulted] No, no, no, don't be like that. Practically everyone is."