2002 ignition problems

So last night my 2002 wrangler took a lot of jimmying and trying and praying to get the key to turn. Once I got it, like an ass I turned it off and tried again to No avail. I got it on again, left it running while I was out and drove it home. Once I got home I turned it off and it turned right back on again, and again and again and it was fine. this morning it wouldn't turn. I hit it with some wd40 and it turned. I got it to work and did the same, off and on and on and off and on and it was fine. I expect it to be a bitch when I get off though.any thoughts?