I've been traveling overseas since the late 1950s (and hearing about the plunging dollar fro much of that period, but remember a point in history when the pound sterling equalled $5.00 (so we've a ways to go in devaluation). A portion of my earnings (about what I spend on foeign travel) comes from an investment in a company which sells service and products overseas. The cheaper dollar has resulted in its foreign sales doubling, so I've come out ahead of the game, my earnings from the investment doubled, while my cost of travel has risen much less.
The cheap dollar works both ways.....