How can I save my fresh flowers to last longer?

PRESERVE MY FLOWERS

How can I save my fresh flowers to last longer?
There have been a many of theories on this, but this is the best I have found and it came directly from Martha Stewart. When you first get your flowers fill a vase with luke warm or room temp water. Then cut about 1/2 inch off each stem on the diagonal. If you would like, you can remove all the flowers leaves also. This will help the flower stay hydrated because all the water is going to the flower itself not being shared between the flower and then leaves. Place flowers in the water and arrange to your liking. Now you want to repeat this everyday, changing the water and cutting about 1/2 inch off the stem of each flower. Also if you can avoid it, don't place your fresh flowers in front of a window, a very bright lamp, or a heat source the direct light will just cause them to open up faster and then wilt. Also you can add a little extra time to their life by placing them in the refrigerator at night, taking them out in the morning. Some people sware by adding sugar to the water, I have even heard sprite and 7 up also. Don't waist your time, I have tried these methods and they don't help at all. Good Luck!
Reply:cut the stems off 1/2 inch, then place in warm water that 1 teaspoon of sugar has been disolved into. when you go to bed for the night, if room allows, place flowers in fridge [or outside if weather is cool]