Username
lissa
Member Since
December 16, 2009
Total number of comments
1
Total number of votes received
15
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Your Pain Is Our Pleasure
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Do’s and Don’t's
The rule is "use an apostrophe plus s to form the plural of letters, numbers, and words named as words." 3's, i's, t's, do's, don't's. Don't's looks ugly, but it it technically correct, I think!