[irrational]

I wonder what percentage of people wait till the last day? I would imagine there would be a ramp up beginning in early February, once people start getting their documents, but, is it logarithmic or linear or something else? It is probably not a smooth curve, with spikes on the weekends.

[behringer]

People are incredibly lazy and they also do their taxes at work. I'd expect a smooth curve right up to April 15.