1. Know your homophones
A quick refresher:
Their, they're, there
Their: The possessive form of "they." ("Applicants submitted their error-free cover letters.")
They're: The contraction of "they are." ("I think they're getting the hang of this grammar thing.")
There: A location. ("The pile of cover letters is over there.")
2. Use apostrophes properly
Apostrophes are used for a few reasons:
They indicate the possessive: "In my last job, I managed the CEO's calendar."
They indicate the omission of letters in words (i.e., in contractions).
They indicate the exclusion of numbers in dates: "I graduated college in '05."
They indicate time or quantity: "I must give my current employers two weeks' notice."
3. Keep tenses consistent
Similarly, as a general rule, all activities or accomplishments that you completed in the past should be in the past tense. Activities that you perform now should be in the present tense. This should be kept consistent throughout your résumé.
4. Proofread and then proofread again
D - resume can take 1 or 2 accents.
Used to be alt-0233.