I have fine poker straight hair with no volume so I curl with straighteners every day to give volume and bounce. I have been doing this for years. I apply mousse or living proof 5 in 1 styling treatment to wet hair then spray Mark Hill curl spray onto sections of hair before curling, then apply some volume powder to the roots. This generally gets my hair lots of volume however, if there's any humidity in the air at all (like last night), my curls completely drop and my hair is surrounded by a halo of frizz. Any ideas on how to stop this?