Cut flowers... - another Tiny Tip

A dear friend gave me a dozen yellow roses a week ago.  Every other day, I have diligently trimmed the stems and changed the water.  Today they were looking rather "gone by", but I was able to get a little more life out of them.  I took off all the leaves and some of the outer petals, trimmed the stems short and put them in a small vase.  I think it looks very pretty, and I didn't have to throw them away, yet.  :)