Water, water, everywhere, but not a drop to drink. It seems a bit sad that we have to rely on bottled water or whatever comes from the tap. Even then, there are parts of the world where drinking from the faucet isn’t exactly a great idea. If you want to make sure you can always get a drink no matter where you are, then having some way to filter water would be of use.
The NDuR is an Advanced Portable Filtration Bottle. It can hold 28 ounces, is BPA-free, and has a flip top (because screw caps are annoying). It can filter up to 100 or more gallons without needing a replacement filter, but this might vary some if you’re filtering harsh water sources every day. This will be able to remove 99.9999% of things like viruses, bacteria, e-coli, mercury, aluminum, copper, and more. It’ll cost you around $40 to get your hands on one, and would be a good gift for the adventurous or jet-setter types in your life.