Clarification- Do we check in a stroller and car seat in the same place where we check in our bags? Or can we use the stroller throughout the airport and check in the stroller at the actual gate where we will be boarding the plane? Are there certain dimensions the stroller must meet? I saw someone else mention the Costco wagon. Could my husband check in the stroller at the plane gate and I check in the wagon at the gate as well?
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