Flying out of JFK. Does Security confiscate disposable razors in carry on luggage? What should I leave out of my toiletry bag that could be confiscated?

Disposable razors are fine.

I think the only razors that would be a problem are straight razors and those individual razor blades you buy at the hardware store.

What will (or maybe) confiscated depending on the TSA's mood:

swiss army knifes, straight razors, scissors of any kind tweezers, safety pins, metal nail files...you get the idea.

I cannot travel without my tweezers, so I pack them in my checked baggage.

Security is not as thorough as it was in the weeks following 9/11. They might let these things go by, but I do not take the chance as it is a real pain in the neck. For instance, sometimes I have to remove my shoes, sometimes I do not....go figure!

I think if you go to the airlines website you will get guidelines on what is allowed and what is not.

Tweezers are now allowed thankfully.

Safety razors (including disposable razors) are allowed by TSA.
http://www.tsa.gov/public/display?theme=183&content=09000519800720a4

I have printed these lists to show to the security agents. Whether this will persuade some agent who simply wants to show his/her power and is too stupid to accept the law is another matter. If I were turned down, I would ask to see a supervisor.