I love my Daily bags so much - and I rarely zip them up. But I've noticed on my sea mist one that if I unzip it completely, the zipper pull migrates down to where I almost can't get it out far enough to even begin to zip the bag up. So I've started leaving it about an eighth of the way zipped up (which looks weird and doesn't stay put). Does anyone have a way to keep the zipper pull from moving around a lot? Safety pin on the inside maybe? Suggestions are appreciated!