Thanks for the info everyone, I'll give it a go.
Part of the problem is that it's not just food driven - he'll go for junk mail, any white piece of paper, dish sponge.... and he seems to have developed a perchant for bookmarks - while I was in cleaning my teeth the other night he pulled the bookmark out of my book, left it next to the book and took himself off to bed like nothing had happened - at least he's stopped running off with the library books.....