Oh my... I could go on for hours about my pet hates.
a) The Mail, The Sun
b) Big Brother and the raft of reality shows, if it contains the word 'celebrity' in the title then it is bound to be crap and containing no true celebrities at all.
c) Those muppets in the streets and stations with credit card offers/WWF etc
d) Expedia with their smug 'we don't charge credit card fees' tagline, yet charge an admin fee.
e) Hello, Heat and Ok
f) People who take the day off work because little Johnny isn't well and the bastards have broadband at home.
g) That bastard advert with the woman from some crap womens mag that tells 'her' beauty secrets
h) Gordon Brown

Ambulance chasers
j) British tourists that insist on wearing the shorts, flip flops and 'Barcelona 92' attire at airports and when travelling
k) British tourists wearing football shirts abroad and dressing their kids in the same
l) Spam in all senses
m) Practically all journalists (esp. those that alledge to be technical)
n) People that can't put a simple e-mail together in proper English.
o) Parents that walk into you with their pushchair
p) People that can't park properly
q) Stupid 'celebrity' fashion - ponchos FFS.
r) Layabouts that ponce off the state and then whinge when tax on alcohol and cigarettes is put up.
s) BMW drivers, esp the tossers with the debadged 3 series (when we know its a 318 or 316 - low of the low) that insist on sitting in the outside lane.
t) BAA security staff
u) Non-standard ring tones - they are meant to jsut ring, not play some crap music.
v) Flyign Club offering out silly Economy prizes for Gold members that typically fly in PE or UC.
w) Political Correctness
x) Offshore Call Centres

Travel companies that offer 'free child places' - no such thing, price is just absorbed in adult prices. If you want kids great, but don't ask me to subsidise them in any way.
z) Aptly at Z, people who are famous for no apparant reason whatsoever. Chantelle, Paris Hilton, Jade Goody etc.
Sure I will think of a lot more....