I bought a sturdy wicker ottoman at Pier One a couple of months ago, it has a place for a pillow to set on the top of it. Living in Washington state, in case that matters. Well I noticed this little pile of "sawdust" kind of stuff in one spot. So naturally I cleaned it up and waited to see. The very next day there was another smaller pile. So.....I figure it is a critter of some type and I want it to stop. Any real suggestions would be appreciated. Is there something to spray it with to stop this event from happening without ruining my ottoman.