I usually wait until pretty late (um...say, the 13th of April) to do my taxes. I do N.A.'s taxes as well, and I would rather do them at the same time than do mine first and have to answer similar questions two months later.
When people find out that I haven't sent in my taxes yet, (and they always do-- what is up with that? Weird competition?) they express shock. I suppose this could be because I'm fairly organized in other aspects of my life (read: super anal), so the contrast is surprising.
But still.
Is it really that big of a deal to wait until April 15th to file?