If you’re using plastic water bottles on a normal basis, don’t let them just go to waste after you’ve finished the water. Instead, hack them like the Crazy Russian Hacker into useful things you’ll use all summer. Need to be able to give your dog a drink of water during a walk on hot day? You can easily turn a regular water bottle into a doggy water bottle with a small tweak. You can also create utensils, drinking vessels, storage for food and much more. Check it out: