I have used this bag for years and think it's just right to contain all those smallish things you need in a hotel room. I'm talking about the things you look for first when getting to your room: chargers, nightlight, hand cream, etc. It's very lightweight and easy to pack, but stands up nicely.
https://www.lesportsac.com/products/7121-g868
Weight update
For those who care, I just weighed mine:
2.75 ounces