I hope I didn double post but I would leave off the list , shampoo, body wash, umbrella,lotion, hair dryer, flashlight, extension cord, power strip, tripod, are you kidding?
I've never understood bringing a power strip, never had a problem charging my stuff. Everything else is provided. I do bring conditioner because the shampoo combo isn't enough for my hair.
Flat Iron? I'm not even sure what that is so I am pretty sure I don't need to carry one to Jamaica with me.
Many of the things on this list are standards on my list too. But when I look at other's packing lists it makes me realize how little I need when on vacation in Jamaica. When my wife and I first started going to Jamaica (late 80's) we took a lot of things we would never bother with now. I think over time most people's lists just get smaller and smaller.
All the best!
CN soooo soon!