She even created a pamphlet with tips.
Girl Scout Gold Awardee Leah Ribordy from Valparaiso joined ABC7 Chicago Tuesday to talk more about it.
She's a rising sophomore at Carroll University in Wisconsin.
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She said her grandfather served in the Korean War, which helped spark her interest in flag care.
Her Girl Scout troop was also partnered with an American Legion, growing up.
She compared her Gold Awardee status as similar to being an Eagle Scout.