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Retailers often pinpoint specific days of the week for their deepest discounts on select items. “You can see significant differences on a day by day basis,” says Charlie Graham, chief executive of ShopItToMe.com , a site that sends email alerts to shoppers when their favorite items go on sale. In a study earlier this year the site found that skirts sold for an average of 77% off on Sundays, versus 52% off during other days of the week.
