if you live in the 'burbs and work in the centre do you ever invite your colleagues to your house? I have always felt it a major drawback of the sheer size of London, I feel it quite a constrainst on making new friends. I'm studying for a year and at the end of the exams I'd really like to invite some of the other students round, but it almost feels like an imposition - to ask them to come such a long way.