I duct tape multiple diapers around my hips. I usually use two cheap attends briefs that I cut at various points so urine will leak through for more absorption. Then I follow up with an Abena M4 or Dry24/7. After I have the final thickest diaper on, then I use 4 long strips of duct tape to make it all very snug. I love this feeling, but it also keeps everything in place, but most importantly for you in this thread, it keeps everything compact, and it really cuts down on the padding bulging out anywhere.
....not only do I do all this, but I follow it up with ABUniverse's reversable plastic pants that are actually two layers. Then I have a body stocking from XPMedical.com. I work two jobs and have never been worried someone was going to notice anything. In fact, with the body stocking, I have no worries about bending over and picking something up or my shirt coming un-tucked. The plastic pants and body stocking really cut down on the crinkle. Jeans do this too. And another big one is the plastic pants keep the smell in, if you're like me and go ALL day long without a change.