A few months after my first daughter was born, I bought a baby carrier. She always wanted to be held, and it enabled me to have my hands free and keep her happy. I tried a few different wraps, but I found the soft structured carrier style to be easier to get on and off quickly.
I have flown with my daughter multiple times without my husband. Getting through the airport was more manageable (I refuse to say “easy,”) when I had her strapped to me. I could wear the diaper bag (I use a backpack style) and carry her car seat. Once, I had to take her feeding tube formula in a carry on, and again, while it was far from easy, it was only possible because I had her strapped to my chest and had my arms free.
I truly don’t know how people parent, especially multiple children, without a baby carrier. So when a loved one announces a pregnancy, be the Best Friend Ever and get her one. It will make her life monumentally easier.