15 must-know entertaining hacks for this Labor Day

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Keep beverages chilled

Take a big cooler, add ice cubes, water and a handful of coarse salt, which will help prevent the ice from melting too quickly. All that's left to do is add your beverages. Another trick is to fill balloons with water and put them in the freezer. When the water has turned to ice, put the balloons into large containers and add your beverages. If the ice melts, put the balloons back in the freezer.