I tend to be a last-minute doer. I college I can recall cramming for exams the night before. And this certainly applied to taxes as well. I wouldn't always wait to file the last day, but generally would do so the week before.
I am excited to say that this year this won't be the case. I filed this past weekend and for the first time ever (I believe) have file before April has started. It's a good achievement. Next year I'll aim for February.
Have you filed yet? Do you always file later than you hope?