Just placing my answer here, I'll read the replies a little later.
How directly to your left are we talking about? I either have a shirt (which is drying right now), a mattress (which I couldn't even swing due to wideness) or an USB mic. (to my, upper left if we would seeing things from the top). So.... I guess my best hope is to jam the door with the mattress, well entire bed set, hope the zombies can't climb enough to reach the window (second floor, but it's a rather large window) and survive on what means of food and drinks I currently have in my room, so... not much. I guess I should train a little bit meanwhile, though without a lot of food nothing would built up. I guess I'll see some of you too and we would discuss how we met our horrible, yet ridiculous demise.
Edit1... FIGHT!
Maybe the Shaun of the Dead 'Blend in the zombies by acting as a zombie' could work for a little time?
Edit2... Let's rock!
Well I stopped reading after 5 pages of posts, due to unpredicted reasons. I'm surprised by the number of people incredibly ready with guns or several melee weapons, not so much with the couple who have improvised stuff, and not by those who are pretty much like me.