How to keep hair taught all day??

I have wavy hair and straighten it really in the morning to school. I used the spray and Chi Chi Heat shield and put on the silk infusion, chi before I recover. I teach all the way, it is true, but when I came to school begins at its end, and at the end of the Day it is not even see buckle as if I straighten it. What can I do to keep it straight anymore?!?

Try a balsamic reduction, or perhaps another rectifier. The expensive work better then the $ 15.

Heat Protectant Review: ION, IC Polisher, CHI 44 Iron Guard