We have the laptop, his charger, my 2 chargers, phones, etc. We still take a power strip for hubby and I to use. Remember that large 3 prong plugs often impede the outlet next to it either in the wall, a plug with multiple outlets or on a power strip!!!!!! We plan on having one wall outlet.....but that may only give us room to plug in one power strip or device.... AND take several plug adapters so if one gets left behind you have a back up. They are light - but necessary.
BTW - hubby likes his powered toothbrush....but manages with an old fashioned manual one for the length of the trip.............soooooo much easier and lighter to pack. You're not going to be kissing the lions......
I have saved a lot of empty travel containers over the years. I only take enough shampoo, toothpaste, etc for the trip plus 2-3 days extra in case of delays. I even have small little plastic vials I can put just a bit of makeup in! Same with medications.....which we carry on us during travel there and back. Quick dry tops that can get washed out in the sink.....and only a few! One fleece for brisk mornings/evenings and a wind breaker.
Have a great trip! Wish I were joining you!