Use a Hydroflask Water Bottle ($18–55, hydroflask.com) to keep your beverage at the perfect temperature. Or drape a Geigerrig Reservoir ($48–49, geigerrig.com), a water bladder, from your car seat for convenient hydration while driving. When hung outside, the reservior’s spray function lets you wash hands, dishes, and your body. Need a cue to sip more? The WaterMinder app ($1, iTunes) tracks your water intake.