throwing this survey around (you may skip some questions)
- do you use a water bottle regularly?
- what does it have for a lid? some mechanism? just a plain screw on lid? describe it
- if it's more than a screw on lid, do you think it's a complicated mechanism, do you understand how it works?
- do you use this mechanism to drink, or unscrew the entire lid instead?
- is the lid easy to clean?
- what is it made of? (clear plastic, opaque, metal, etc)?