Well this couldn't be any easier. Normally when you try and mix sugar into a cold drink it won't dissolve, it just sits on the bottom of your pitcher or glass. On a hot summers day when you want to chill out with a nice lemonade or Ice Tea - Simple Syrup is the ultimate sweetener.
1 Cup sugar
1 Cup water
Add the sugar and water to a pan over medium, stir the mixture until the sugar is totally dissolved. Cool, and store covered in the fridge until needed.