Call me cheap...or practical. For water storage, I simply re-use 710 ML Powerade bottles. They are free from work, have a wide enough lid to get most ice-cubes into and can be easily carried (multiple) in backpacks, jacket pockets etc. If we drop and break worries there, lots more where they came from.

For longer trips, the 1.5L corner /grocery store water bottles that consumers waste their money on also work great.