I've stayed in 5-star hotels around the world. This one simple, cheap amenity should be in every room.

• I've stayed in 5-star hotels around the world, but an amenity on a recent trip surprised me.
• My room at the Balmoral in Edinburgh, Scotland, came with a complimentary power adapter.
• It helped me realize that sometimes, the best amenities are the most simple.

The past few times I've gone overseas, my trip has begun in a frenzy.

Without fail, shortly before I leave for the airport, I remember I need a power adapter. So with my bags already packed, I frantically research what kind of adapter I need and tear through my drawers to find one that will (hopefully) work.