These days, most gyms have some kind of smoothie bar. You can choose from dozens of delicious options, all of which are crafted from natural ingredients and tailored to your nutrition goals. While the thought of a ready-made shake can seem mouth-watering, this daily treat can add up over time. Instead of shelling out your hard-earned money for premium smoothies, start making your own. All you need is a standard blender and a quick trip to your nearest market.