We went to REI today to start looking at some of the things we'll need.  We got Sachi some shoes as she has foot problems and we need to special insoles made, etc.

Something we learned about is TSA locks.  In traveling, you want to have a way to lock you bag's zipper. However, in the US and other developed places, there is often a need to search bags. Previously, the TSA would cut locks to be able to get into bags.

Now though, there is a standard type of lock that only the TSA can get into- and they don't have to cut the lock.

We plan to carry-on our bags (hopefully all the time) and I'm not sure these will matter internationally, but just in case, its good to know about these locks.