One of my daughters-in-law, with the best of intentions, sent me two items for Christmas. One is an LED lantern that requires 4 (!) AA batteries, completely unnecessary because my headlamp is more than sufficient for all my lighting needs. The other is actually rather useful for exercise walking around home, a gadget called a "Gulpy Pet Water Dispenser," consisting a one-pint water bottle with a "trough" attached for my dog to drink out of. Its capacity is too small for a hike of more than an hour, though.
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey