We also have a two USB outlet at the nav station. A two USB outlet on a secondary panel for entertainment/internet stuff. A standard 12 volt cigarette lighter style plug at the nav station. Another standard 12 volt plug at the helm. And a two USB plug up in the vee berth.
My preference is to charge 12 volt if possible. So phones, tablets, Kindles, cameras, Bluetooth speakers, tool batteries, flash lights, laptops, etc. are all charged 12 volt. Our Dyson vacuum is the only thing I can't find a 12 volt option for, so I use the inverter. The inverter is also used for the electric kettle to make coffee, the small shop vac, the clippers to shave my head and my heat gun when the project is too big for my torch.