Many job seekers are failing at job interviews because of poor preparation and appearance. The most common blunders include being late for the interview, dirty finger nails, slouching in the seat and having a wet, limp handshake.

More than half (52 per cent) of job applicants spend less than two hours researching the company and preparing for the job interview, according to a recent poll by online recruiters Fish4jobs.

Dr. Ineke Bolt, co author of 'Beauty and the Doctor' said many job applicants fail to understand the importance of preparing for a job interview

"Your interview appearance refers directly to your character, performance and relational capabilities for the job you are applying for.

"Employers only have a short time to judge your suitability for the position, so your appearance and grooming will be scrutinised intensely during the interview."

Four out of ten jobs seekers (44 per cent) believe they could have done better at a job interview if they had spent more time on their appearance and rehearsing common questions and answers before the interview.

Fish4jobs has a checklist to help you get through the job interview:

1 Know your CV so you can talk about it without prompting. If asked to talk through your career history to date, pick out skills and experience that are relevant to the job you are applying for.

2 Research the company you are applying for including annual reports, websites and the company culture.

3 Think carefully about the role you are applying for and how you would be the best candidate for the role.

4 Rehearse common interview questions with a friend of family member in a "mock interview" before the big day.

5 Plan your travel to the interview allowing plenty of time for public transport delays.

6 Ensure your interview suit is pressed, shoes polished and shirt ironed. If you are not the sharpest dresser, consult a trusted friend or family member to help you pick an outfit that is smart and professional.

7 Ensure your grooming is immaculate. Invest in a trip to the barber. Looking your best impresses the interviewer.