Undergarment help?

sdeluna08

I have my first dress fitting next saturday and I am trying to find something to flatten out my lower stomach.  I was thinking of wearing a bustier so that I don't have to worry about readjusting a strapless bra and so my whole stomach/waist will be under control.  My dress is strapless with a sweetheart neckline.  Anyone have a recommended brand or place to find something like this?

jagore08

To flatten out my tummy I wear Spanx.  I have both the higher power Spanx (they go about mid thigh to just under bust) and Assets (from Target.  They are about the same as the Spanx but they don't go up as high as the Spanx).  

w+c3

I bought spanks for this purpose.

naomikb

Ditto Spanx.  There are different varieties (tall, short, with boobs, no boobs, with crotches, with thigh tighteners...) for all different outfits.  They are good quality.