Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to books covering a wide spectrum ranging from Apple devices and cameras to photo editing software and ...

Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate (up or down) as the Fed rate changes. CNBC Select will update as changes are made public.

Coconut water, milk, fruit juices, and smoothies are high in electrolytes. Drinks with electrolytes may help you rehydrate after intense exercise, vomiting, or diarrhea. You can also make your own ...