Pronuciations - 'Nucular' instead of 'nuclear', 'a-loo-min-um' instead of 'al-yoo-min-yum' (sorry guys, I guess it's the old UK/USA thang again!). Glottal stops (e.g. le'er instead of letter, ta'oo instead of tattoo) which have become far more common since they started that showing that bloody 'East Enders' drivel on the telly. And worst of all, the use of an 'f' or a 'v' where there's a 'th' (e.g. 'fink' instead of 'think', or 'wiv' instead of 'with') - more foul 'East Enders' influence, and sheer unadulterated idleness on the part of the perpetrator.

Spelling - 'are' instead of 'our', 'maintainance' instead of 'maintenance' and 'fourty' instead of 'forty'.