Before you spend money on a charger you don’t need after your trip, ask the hotel if they have extras. Most hotels have drawer full of chargers that we’ve all left behind and others can use. Who knows, if you go to a hotel often enough, you may even re-use a charger you previously left behind.
We use our devices for everything! Don’t be stuck with a device that is down to 5% power with no charging station in sight. Portable chargers are small, inexpensive and can be a lifesaver when you’re lost and need Google Maps for directions.
Many hotel rooms in Europe, Mexico and beyond require the room key to be placed into a receptacle to power the room on. This is brilliant for energy savings, but it takes some getting used to.
In Germany, I had to make two different trips to the desk to request a new key as I walked out without mine. Shame on me…but I often leave my TV on when I am leaving the room so that habit overrode the one to check for my key in my purse before I walked out. :/. Thankfully this receptacle is most always right by the front door so it should be a good reminder before you head out.
As a hint, if you need to use your key (maybe someone else in your room needs to go somewhere and needs a key later), often – but not always – you can also slide the envelope for your key in this slot as a placeholder.
When you are traveling out of the country, it’s a good idea to research the electrical situation so you don’t blow up your curling iron. Sometimes you will only need a new connection end on the plug and sometimes you’ll need to actually convert the power to a different voltage.
Here’s a great tool for finding out what you’ll need (see the pull-down menu near the top middle of the page): http://www.walkabouttravelgear.com/adapterIndex.html
More good advice here: https://www.smartertravel.com/2017/06/19/electricity-overseas-converters-adapters-beyond/