My biggest problem has never been having too much showing. . .I unfortunately am a bit lacking in the cleavage department; however I am also short in the torso (Double whammy!). So any neckline that is too wide in the shoulders or cut too low I would fidget with all day long. Pulling it back to raise the neckline so my bra would not show, no matter which kind of bra I would wear.
I get so frustrated when I go shopping only to find many of the styles today for woman are made to accentuate the bust line, and that just doesn't work for me. I don't need a turtleneck, but for goodness sake, you don't need to see my bellybutton either.
Another option for a bandeau style top is the nylon rayon spandex blend Seamless Bandeau Strapless Tube Top for a mere $5.50 by ! A few months ago I purchased both the black and white version to see if this might be the answer to my fashion struggles.I was thrilled with the results it gave me and for $5.50 I wasn't passing that deal up! I have now purchased or been gifted with nearly every color available. I no longer have to worry if a top or dress is cut too low, and mixing and matching the different colored bandeau tops with my outfits is almost as fun as adding a stylish accessory.