This might be a little to ambitious for most of us desk jockeys, but Instructables has instructions for creating your own cement-filled lightbulb wall hook that you can create for fun and profit. Note: You do not actually leave the glass part of the bulb intact. At the end of the experiment you break the glass off and then stick the huge lag bolts into your wall. The results, needless to say, are quite impressive.
Last winter after breaking out the serious cold weather gear, I found myself fighting the coat rack next to the front door. It was, to put it bluntly, failing miserably. Tipping over, breaking off, it was a mess. I swore before the next winter I would drive some serious hooks into the wall that would handle all my heavy overcoat needs. I just haven’t seen any kickass hooks yet that I liked enough to justify making serious holes in my walls.