We're all in this business to make some money. In a metrics based industry, that's the ultimate measurement. We have access to stats from affiliate programs 24/7, which means you can check your stats as often as you want to.
How often do you check your stats? Do you go for the big surprise at the end of the month? Do you look at them every day? Or do you do something in between? After voting in the poll, please explain the reasoning behind how often you check your stats.