Any tip for traveling with baby?

I am planning a Vietnam trip with my wife and our youngest 10 months old boy and wonder if anyone has any tips for us. Things like diaper change, baby foods, medicine, baby carrier, toys, stroller at airport, and all those little details that I taken for granted are now bothering me. I want to make the trip as pleasant and hassle-free as much as possible. So any tip is appreciated. For a starter, while looking on the Web for a best system to transport my baby with a stroller and a CRD, child restraint device, I found a Safeline Sit-n-Stroll car seat that can easily transform to a stroller. It's a great product but then it's expensive. My boy can already sit in one of those inexpensive umbrella stroller which I already have, but he still need to be in a CRD on the plane. So I am looking for a best way to carry both the stroller and the carrier around the airports. By accident, I found a compromised and inexpensive solution. The solution is just place the infant carrier on the umbrella type stroller and secure it with my new un-patented device called "stroller-lock-stick". My "stroller-lock-stick" is a very simple device that secure the carrier to the stroller. I promise to include a picture of it and some instruction on how to use it when I have a chance. It works with the Evenfo Discovery infant carrier that I have but it should work for all type carrier that has the lock for the shopping cart. I'll let you know how this system work out after the trip. I am sure there are more troubles I will be encountered when traveling with my little boy. So if you have any other tip on traveling with baby please share it with me. Thanks.