Gate check bags for strollers and car seats can be one of your best tools when boarding a flight with kids.
Having an umbrella stroller through the airport, and at the gate, is very helpful. It holds not only your kid but also some of your bags too. Unfortunately it is necessary to check it at the gate. This is when having a check bag is an important accessory.
Protecting these items from dust, dirt and mold from the airline cargo compartment is a very wise idea. It will also prolong the life of your gear. Airline carriers can be pretty rough on luggage!
Most brands offer bags that fold compactly to fit in a purse or diaper bag. These ones can be found at Amazon and many other retail stores, and are a lot cheaper than branded versions.