Back to the 10lb key ring...
My old Ford truck actually had that problem, and I had to replace the entire steering column. Year and a half later I could start it without the key. Six months later and it was time to replace the column again. I chose not to and instead would jump it right off the solenoid (IIRC) when I got to where I wanted, pop the hood and disconnect the battery. Ahhhhhh, sweet memories of a punk youth.
Now I carry multiple rings, with the one ring being house, truck and mail key with a monkeyfist fob. No more worn out ignition switches for me.