Lighten your load on a daily basis with this sleek dual-walled water bottle: It maintains the temperature of your beverage of choice, yes, but it also boasts a storage compartment for your keys, ID, lip balm, or other little trinkets you’d like to keep handy . . . but out of your hands. The space is discreet, accessed through a screw-off bottom that helps your items stay hidden, and has up to 450 cubic centimeters (just more than 25 cubic inches) of storage.