Kristin Cavallari's son, Camden Jack Cutler, may be one of Hollywood's most stylish babies, but his former reality star mom recently shared a secret with Us Weekly about her little boy's wardrobe: Most of his designer clothes are gifts! "I'm all about Carter's and we've bought so many outfits at Target," the budget-conscious mama, 26, told Us at a New York City event promoting her Chinese Laundry shoe line.

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"All of his designer clothes have been presents from people. At first I was all into the outfits -- and some days I am -- but other days he's just in pajamas," Jay Cutler's fiancee explains of their little boy. "They grow out of [outfits] so quickly, so there's no point in spending so much money."

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Another way Camden's mom is cutting costs as her son grows? She's making his baby food! "Everything is organic and I blend it up in his little Baby Bullet," she says, referring to the popular seen-on-TV blender. "He eats very well."

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Now 7-months-old, little Cam is keeping his mom busy as he becomes more mobile. "He's doing this army crawl on the floor -- he'll get up on his hands and knees -- and he'll yell now," the Chicago-based Cavallari tells Us. "He loves having attention!"

This article originally appeared on Kristin Cavallari: I Buy Baby Camden's Clothes From Carter's!