Can someone explain to me all the withdrawal options available to me (except for buying and annuity, not giving my money away) that I have, while leaving my money in the TSP and not incurring the 10% penalty? I am planning on retiring before I reach age 55, so that limits my options some,I know. I am assuming the life expectancy payment option from the TSP is the same thing as the 72t option or am I mistaken there? Thanks in advance.