A year of ostomy supplies would be great.¬† Although there are re-usable ostomy pouches.
Huge fan of WD by the way.¬† I would think from watching the show, everyone would be smelling a little rank about now without a daily shower.¬† I would be more worried about stomach skin acid burns being an ileostomate.¬† But you can create make shift pouches out of many things.¬† Condom's come to mind.¬† Not ideal but good in a fix.
On a serious note, the closest we might come to a zombie apocalypse would probably be a mutated version of rabies similar to the movie 28 days later.¬† I'd be screwed.¬† I have about a month of supplies at any given time.¬† But I have a 12 guage shotgun with a shxtload of ammo.¬†
YOU CAN HAVE MY OSTOMY SUPPLIES WHEN YOU PRY IT FROM MY COLD DEAD STOMA!!