Portable AC Outlet Mini Power Strip with 2.4A 2 USB Ports 12W Mini Socket Wall Charger – $6.69 AC+Prime FS

Saw this one on sale on Amazon. It looks very convenient for trips. Not bad for $6.69 after coupon code: 5OSKRESD wirh prime free shipping.
https://www.amazon.com/dp/B075V35TMQ