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Manners matter!

Just two weeks after they calling off their engagement, Kristin Cavallari and Jay Cutler are making the proper etiquette move by returning their wedding gifts.

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"The Hills" alum, 24, and Chicago Bears quarterback, 28, sent out letters to alert their gift-givers, which Deadspin.com posted on Aug. 5.

"You are probably aware that our engagement was recently broken off," Cavallari and Cutler wrote in the typed-out letter. "Because of this, we have returned your gift to Crate and Barrel and you should receive a refund on your credit card. The kindness of your gift and note is greatly appreciated. Thank you so much for thinking of us!"

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Unlike Kim Kardashian and Kris Humprhies, who registered for over-the-top items like $6,000 vases and a $38,400 silverware set, Cavallari and Cutler were modest. Items on the couple's registries included bakeware like $15 cake pans from Crate & Barrel and $50 Williams-Sonoma mixing bowls. No word, however, if the Williams-Sonoma $2,799 Shun Kaji 19-piece knife block set was fulfilled.

Cavallari and Cutler called it quits at the end of July after announcing their engagement back in April -- they dated for just eight months prior.

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"They just had their engagement party [July 23] and then he decided he didn't want her anymore," an insider told Us Weekly on July 25. "She's upset. She was ready to marry him." A second source noted that Cavallari's "family and friends had a feeling [the split] was going to happen.

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