First and foremost, bleach is an excellent cleaning solution for your boat anchor, if you have one. You might not have one if you have a pond or a lake in your backyard with a rowboat in it. You probably want to take it out on the lake and get out of the boat from time to time… without it floating away. While carrying an actual anchor for a small boat isn’t practical, you can always use a large bottle of bleach on a rope to keep yourself in place. Just make sure it’s not punctured and that the lid is securely fastened!