D.S.
You need to get extra help from the airport staff or from a friend or realtive for the take-off and arrival at the airport. Porters and baggage valets are at the airport for a reason.....they help anybody and everybody who needs it and you qualify for the help. Right at curbside at the airport, you can load luggage and anything that will go on the plane and have them help you check it in right there. If you have one of them port the carseats or any other bags or strollers to the airplane gate, they will take it all there, and help you get it all on the plane with the flight attendants help. You need to ASK though. You tip the porters $1.00 per bag or large item that you have. It's a nominal fee for the amount of help you are going to get. These guys are good at what they do and they are there to help so please don't forget to tip them....take care of them. The only other thing you can do is have a "helper" friend or relative come to the airport with you and carry a kid or your items all the way to the gate and also meet you when you get off the plane. This will require getting a "gate pass" from the ticketing agent at the airlines desk and they also have to have proper I.D. and go through security with you. Either way, you are not 100% on your own and never should be. You also want to make sure you board the plane FIRST, before all other passengers and get your kids situated and in their seats. Once again...ASK for help from the flight staff...this is their job and they are more than happy to help you out. Happy travels and remember that if you don't have enough hands to do what you need to do...just ASK.