Since our honeymoon, we have learned the joy and safety of getting your film developed on vacation.
We almost always use a one-hour/one-day developing place that does NOT send the film out. This minimizes the risk of losing the film (See Rae's Mom's story).
We almost always then sacrifice the "double print" bonus. But really, who wants a set of our vacation prints? Any spectacular shots or shots with relatives can be duplicated easily.
We also pay about $4 more per roll than we would at home. But if you did even 5 rolls that comes out to only $20 total to avoid the tragedy of lost film, or film damaged by aiport x-rays.
You also gain the ability to see the shots while on vacation, and we often come home with them already in locally purchased albums. Sitting around some spare hours in a hotel room, it is a productive time filler between events. You can show the "peeps" back home the album while you are still on the high of vacation and they are still (feigning, at least) somewhat interested in hearing your vacation stories.