I stopped wearing my weeks ago when I could no longer squeeze into non-maternity bottoms and graduated to full-panel maternity pants. But I have now rediscovered how lifesaving they can still be as the heavier fabrics of fall have my maternity pants constantly slipping down my body. (Seriously, how do some people walk around with the crotch of their pants between their knees? SO uncomfortable!)
These days, I'm wearing the full-panel ($25) with the panel pulled up all the way to my ribs and also have the tummy sleeve folded in half around my hips, just below my belly button. My two sleeves are definitely raggedy from too much washing in unforgiving laundromat machines (I recommend hand-washing them), but no one sees them and they save me from the saggy-ass syndrome and let me get away with not having to buy more expensive maternity jeans. I'm sure that the designer jeans stay up a bit better, but this mama is not paying $300 for pants I can't wear after baby is born.
Just a quick, hopefully money-saving, tip!