My DH loves his "Daddy Vest." I think there's one out there by that name, but he has enjoyed experimenting with a variety of cargo vests. His fave is the ScottEVest because it's less bulky. And its usefulness should last longer than his diaper-carrying days.
He also found a diaper bag at BRU that he liked enough that he bought it for carrying his work materials. But it has never seen a diaper. (He doesn't like carrying something else when he's already carrying a child, so the vest is perfect for him.)
Jo
DD#1 "JellyBean" 6/08
DD#2 "Ha" 6/10
"Theory is great, but as I'm in the trenches of diapers and dishes and ear infections, I try to relax and focus on what's most important: love."--mjs64