Another one I hate is when people say 'literally', when they mean 'figuratively', e.g., "I was so hungry I was literally starving to death" (note that I remembered the comma after e.g.

).
How about 'ect' instead of 'etc'? It stands for 'et cetera', meaning 'and the others'.
Pleonasms are quite common too, although sometimes they can be used for emphasis, like 'completely destroyed' or 'totally unnecessary'. Ones I hate are 'reverse backwards', 'PIN number', 'free gratis', 'more better/easier/bigger' etc, 'round circle', 'totally/completely/very unique', 'wall mural'.
Some of the difference between UK and US English jar with me, for example, practice/practise. In British English, 'practice' is a noun, 'practise' a verb. So in the UK, you can't say 'practicing'. But in US English, 'practice' is OK as a verb and a noun. Still, 'practicing' looks plain wrong to me. Similarly for lisense/licence. The US uses the 's' spelling for both, we use 'license' as a verb, 'licence' as a noun. One more: dependent/dependant. UK: 'dependent' is an adjective, 'dependant' is a noun. US: 'dependent' is usually used in both cases.