Disclaimer: Alas, I do not own Sherlock, its characters, nothing.
A is for angular cheekbones
B is for the blue scarf
C is for the cranium sitting on a shelf
D is for deductions
E is for experiments
F is for a friend, just the one
G is for genius
H is for high functioning sociopath
I is for IOU
J is for the joy of a serial killer
K is for the kind little doctor
L is for the laughter
M is for morbidity
N is for the nicotine patches
O is for the observations
P is for pink
Q is for questions
R is for Reichenbach
S is for the stupid people, all around
T is for taxi
U is for the unknown
V is for the violin
W is for war doctor
And then there is X, Y and Z