You want to carry a bottle of water around with you, but you tend to carry bags like this, which aren’t really optimal for cylinders. What to do? Easy: make the water bottle slim and rectangular.
We’re shocked this wasn’t an option sooner. Anyway, these memobottles (starting at $20 on Kickstarter) will fit in most laptop sleeves or other compartments like that. We suspect that they also stack way neater than conventional water bottles.