Getting through the airport and boarding your plane is a pretty big deal. There are a lot of things you have to remember, and there are a lot of things you have to do to make sure it all goes smoothly. This is especially true if you’re traveling with kids.   By all means, pack plenty of snacks and dress the whole family in layers, but you should also think about ways you’re going to keep those kiddos entertained during the long hours you’ll be spending at the airport and on the plane. Here are four fun ways that will keep both you and the children entertained. Apps, Apps, Apps…