There seems to be a battle of wills going on between two different schools of thought.
If you visit some agency websites, you'll learn that you don't put the comma before the word "too" at the end of a sentence. But if you visit other websites and blogs, you will see that the agents use the comma. I've searched the web over and over again for advice on which way to go, but everyone has a different opinion. Jodi Picoult (or perhaps, her editor) even seems to argue with herself over this issue because sometimes she uses a comma, and sometimes she doesn't.
Now, I don't know about you, but I learned in school that there should be a comma. I also hate it! I find it annoying, especially when there obviously should be no pause there. My feeling is this: proper mechanics indicate the comma is necessary, but literary trends seem to allow for its absence.
What's your opinion? Is the comma necessary?
Also, don't forget about the Slumpbuster Challenge. We already have a great story going. Click on the cute penguin guy in the sidebar to add a sentence!