When writing a cover letter, one of the most common mistakes people do is forgetting to proofread their work. Prevent repetition and ensure that your work is free of spelling and grammatical problems prior to sending your cover letter. It’s also a good idea to avoid overusing the pronoun “I,” particularly at the beginning of your sentences. Finally, avoid repeating too much of the general information from your resume as this is a common mistake. Instead, concentrate on your most salable characteristics and build a tale about your past experiences and how they prepared you for this particular position in particular.