In 1997 I sailed to Hawaii and use a digital watch to get around the boat at night. The low light display would stay lit for 15 seconds every press. A tiny amount of light is all that is needed to dress and get ready to stand watch.
I agree with Norm on the smart phone. I use mine for a low level lamp--just the screen of my notepad. A bright flashlight using the camera flash is great for walking the dog, plus the alarm clock, notepad, navigation, research tool, etc, etc.
Of course having a phone with you means sways having a camera. Now bring a GoPro Hero with me because of the many recording modes and mounting options and waterproof case.
While I'm not like Ginny, ready to give up my laptop, on trips where I need to travel very light I just bring my phone, an external battery
and extra chargers, and load many books. Some trips I bring a iPad loaded with movies. My laptop is a bit heavy so I think twice about it. It is useful for video editing and faster for writing
Traveling light is always the best way to travel. I'd rather bring too little and buy what I need on the road than carry too much and struggle with the weight
of it all.
I almost forgot the one thing I wanted to mention.
RAM mounts. I use an X-frame Ram mount for my phone at my bedside table and in my Volvo 240. I have a clamp mount for my boat which i also use to attach it to my bedside table.
Ever since I started using these, my phone does not fall
or get knocked around, and it stays in a convenient spot I can swipe to answer a call with only one hand.
If there is one thing that has made my life better in the last year it is definitely the RAM mounts I've purchased. I just ordered two more X-Frame or whatever they are called, to mount my iPhone in my Silverado and at my desk. It is so convenient to have my phone mounted securely exactly where I want it with a charger cord nearby. It really makes it into a desk phone--and I rarely use my wall mounted phone except to call Canada.