Please help me eat good food

So, I bought some clams today. Littlenecks, quite nice looking. And I would like to eat them.

Here's the trouble: clams are really hard to shuck. I've googled around, and somehow the instructions on eHow and the like just aren't doing the trick. (Also, I don't have a clam knife. But I was hoping to maybe do this without one...)

Anyone have any secrets for me? Anyone? Post in the comments if you do. I beg you...

(As a totally random aside, the three biggest entries in eHow's "cloud" at the moment are, in order, "lose weight", "get pregnant", and "get rid of fleas". Really? Okay...)