Pick a small town that’s at least 45 miles from any medium or large city. Now look over the hotels in that town. In all likelihood that hotel is NOT a major chain and has been there 50 years or more. Now look at the outlets available in that room. 1, maybe 2 out in the open and more if you are willing to unplug lights and move furniture. Also assume you are working 10-16 hour days. I take an iPad to watch preloaded movies, because local tv will be sparse and many don’t carry an extensive channel selection, a cell phone, and if I can find time to walk after work a set of earbuds/headphones. Can I get by with only one charger? Sort of. Do I frequently have one component or another not get charged so I can’t use it? Frequently.
Have you considered something like a multiport USB wall charger? You can find them approximately the size of an iPad charging brick (well, often a little larger, but way smaller than carrying two or more charging bricks around). I bought one for traveling internationally and it works great when traveling domestically, too! Easily lets my partner and I keep all our devices charged up at the same time. Yeah, you still need to bring cables with, but it's a much better solution than bringing lots of charging bricks + cables.
This article discusses a few options: https://thewirecutter.com/reviews/best-multiport-usb-wall-charger/
This is the one I was talking about that I own and it worked great in Europe (and works great in the US) https://www.amazon.com/gp/product/B074QMDBXF/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
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