Cheapest way to get from LGA to Grand Central

Hi,

There is a chance I will be flying home for Thanksgiving. I am looking to get from LGA to Grand Central in order to transfer to a train. Are there any subways/buses I could take? I was a bit confused by the LGA website. Also, it doesn't have to be something that takes me directly to Grand Central, but perhaps something around Times Square, Madison Square, or that transfers me to another subway line. How are buses and such? I am looking for something cheap, probably under $10. I also don't want to end up in some shady neighborhood. I've never done this before, and I tried looking for a thread with no luck. Just seeing what you guys do.

Thanks!

P.S. I don't want to take a cab, either...I'll probably have only one bag.

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Updated On: 10/27/08 at 07:15 PM

Is it easy to navigate the buses from the airport?

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I am not sure yet, whatever is cheapest. Perhaps sometime midday the week of Thanksgiving.

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The 4, 5 and 6 don't go to Columbia.

I would take the $12 New York Airport Service bus directly from La Guardia to Grand Central.

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Thanks! If I take the M60 to Columbia, is there any easily accessible subway line near?

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BTW, if you pay for the bus with cash, make sure it is in quarters. The driver will not take dollar bills. I think there are change machines somewhere in the airport.