i wear the brand stamp 10 jeans from kohls' they are super cute, lowrise and the best thing is they are sized weird, so i can wear a 6, lol.
But i also tape my bag down, i just tape the top part that does come over the waistband to my stomach. I dont' wear anything else to hide it, i wear undies that hold it in, the boy shorts from flirtitude at JCPenneys, super cute and affordable, they come in lots of colors and styles, but i think the boy shorts or hipsters work best.
I also wear everything i wore before, and other stuff, i wear skirts, i got a really cute plaid skirt outfit, looks kind of like a school girl outfit, lol. I wore it out, noone noticed a thing.
In fact noone has noticed anything at all.
You can wear a belly band, you can cut the legs off a pair of hose and wear that to help hold it in, you can tape the whole thing down.
the best thing to do is to just check it to see if it is getting full and keep it emptied regularly although unless you let it get really full noone would notice anyway.