Over on reddit, the old chestnut of a question “Do I really have to send a thank you note after an interview?” has come up again. It’s always sad to see the excuses that people try to come up with to forgive themselves for skipping this basic step in the job hunting process.
The cost of that thank you note is ten minutes of your time and a 44-cent stamp. The payoff could well be landing the job. It cannot hurt you in your job search, and can only be a positive in the mind of the interviewer. You also take the opportunity to reiterate your good points and show the interviewer that you were paying attention during the interview, and you show that you actually are interested in the job, which is sometimes hard to tell.
It’s ten minutes and 44 cents to give you an edge over other candidates, to help you land the job you want, so that you can be gainfully employed and get out of the job hunt. The cost/benefit ratio is huge.
Quit whining and do it.