Baby's First Flight

Tonight we are going to Florida!  We are a little nervous about the whole baby, airplane thing but knowing Aden is pretty mellow, we should be ok.  Any words of advice?  I can't believe we haven't been in Florida for almost a year.  That's a really long stretch for us but I guess that's what a baby does to you.  Melissa and Mark are coming with us.  They are very excited about getting away for a few days.  Of course I will have Florida pics up tomorrow morning but probably no pictures today.  We did get that Sit N Stroll stroller that's a car seat with wheels.  Jason and Lisa used that with the Carter recently and liked it.  It should come in handy, if only I can figure it out, to get through the airport and as a car seat for the rental car.