These are used increasingly in emails and now even conversation (cringe):
'I spoke to yourself on the telephone yesterday...'
'It was done by my colleague and myself' or, even worse, 'It was done by myself'
What's wrong with
'I spoke to you on the telephone yesterday'
'It was done by my colleague and me' and 'I completed it'
Sorry if this has been discussed before, but this is really grating at me at the moment.