A portable water dispenser allows you to use purified water from large jugs instead of single-use water bottles. Here's how ...

like a portable air conditioner. A swamp cooler works a bit differently from an air conditioner. It passes hot air over water-saturated pads and reusable ice packs. This causes the water to ...

Until recently, I believed that traditional water coolers-- typically found in office buildings -- were the best options. But I'm changing my tune with cheap portable water dispensers.