When I travel, I take swim goggles for:
1) The possibility that I'll need eye protection from swirling airborne particles during some disaster.
2) Doing laps in the hotel pool.
3) On a commercial flight, donning them before takeoff and pretending to be the Red Baron, much to the amusement of formerly crying children. It makes them stop and stare.
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Regards,
Gear Freak
USA