While I am over the level where I need to file a return, TT quickly decided that my "refund" was zero.  I haven't yet entered a number of my deductions (tax prep, medical insurance/expenses, charity, etc), but is there any point?  Why chase around after all these numbers if they aren't going to make anything better for me?  And yes, I'm quite certain there is no possibility of any type of refund.

In the unlikely event that the IRS decides there's a problem with my return and that I owe them money, I'm going to essentially have to redo everything anyway, aren't I?