Online savings accounts usually come with substantially higher interest rates to help you grow your money faster (regular in-person banks can’t offer rates as high). Banks like CIT Bank and Discover Bank (among other top players in the industry) are great because their interest rates are often over 20 times higher than the national average. That means the money in your savings account will grow 20 times faster than the pace it’s most likely growing at now.
Regardless if you need to earn some fast cash or we're just talking about making money in the grand scheme of things, there's an important psychology that needs to be mentioned before getting into the strategies. If you study Freud's model of the mind, you'll discover the Psychic Apparatus. It's the three-part construct in your mind that controls all of your behavior.