This is one of those things that I’m surprised I haven’t seen sooner- but genius! A collapsible water bottle! Vapur have created a “fold and go” bottle- that stands when full, then “rolls, folds, or flattens when empty.” It’s dishwasher safe (although not sure how you clean the inside…), comes with a carabiner, and you can even freeze it, use it as an ice pack, and/or drink it as it thaws. (brings back old skool Capri Sun lunch box memories) Anyway- I need one to bring to and from work- I’m thinking it would also be pretty handy for travel so you don’t always have to buy a bottle after you get past security at the airport- More info and to purchase here. (via Real Simple)