Flavored ice cubes keep your cocktails cold without watering them down.

Ice is a holiday party essential - nobody likes a lukewarm drink! - but it can also be the downfall of your carefully crafted cocktails. As they melt, ice cubes dilute the drink, watering it down while you're attending to your hosting duty. To prolong the life of your punch bowl or pitcher, try freezing cubes of complementary flavored fruit juice, soda, or even sparkling wine the day before the party - you can even add citrus zest or herbs to the mix. If the drink of the hour is a cosmo, try these cranberry-orange ice cubes.