Everyone knows both you and the people you interview with are very busy.

During each interview, at the beginning, make sure you get the correct name and title of the person you are speaking to. They'll appreciate your thoughtfulness at the time which will help you get off on the right foot in the interview. It ensures you can follow-up effectively.

No matter how your day goes, serve yourself well by sending each person you meet an individual follow-up letter.

The letters may be the tie-breaker deciding whether you get the offer over another very good candidate.

Even if you were already going to be getting the offer, it creates goodwill which will facilitate your success upon joining the company.

Even if you don't join the company, because you don't get the offer or decline it, you create goodwill with people whose paths you might very well cross again as your career develops.

There is no downside, only upside, to nice, well-written follow-up notes thanking people for their time and expressing interest in pursuing their opportunity.

Do yourself a favour; plan to get your notes in the mail the same or the very next day after you interview