I have a wavy bob, so volume is my best friend. :-)

I have had really good luck with Beyond Zone Noodle Head Curling Mousse.

I put about 2-3 handfuls schrunched into wet hair. Then I add a bit of LALSG for increased hold. Then I pixie diffuse upside down. I get good volume this way, oh, and when I got more layers added, that helped a TON.
CG since 6/2012

Hair type: 2a/2b, normal/high porosity, fine, normal density
Lo: Organix Coconut water shampoo
Co: Suave Naturals, V05 kiwi lime
RO: Loreal Total Care
Style: AIA Curling Jelly, KCCC, Noodle head curling mouse, LALSG, AG Re:Coil
Methods: icequeen, scrunch n pump, smathers, diffusing

Currently dealing with learning how to style shorter wavy hair...