I find it really helpful for say, senior sales positions where there is likely to be a lot of talking and not much writing and the interviewers tend to be no very good at administration stuff, to take a brief powerpoint presentation on paper summarising a timeline about your career to date, key achievements, strengths and (positive)weaknesses, opportunities you have identified in their market and where you can add value and perhaps a short business plan of how you would envisage things going forward. Make it all branded and bespokey. Even if you don't do anything with it you can just leave it with them and they have something tangible to refer back to when they are reviewing the candidates. If you do use it as a tool in the interview then it demonstrates you are prepared, organised, have thought things through and gives you something to talk around. It doesn't matter if th stuff you are proposing to them is BS just take what you can off their website and other research they won't expect you to know everything about them.