I also agree with Will to a degree. Plenty of people cry chicken little when they are off for a day week. But if there is a trend effecting multiple people, I give it a thought.
I know for me in the summer months, my sales dip 'maybe' 10-15% (knock on wood) over the years as long as my behavior is the same.
But you have to look at it realistically as well. For example. Just as surfers are outside more, vacationing, etc. So are a lot of webmasters. So you are not hunched over your computer like you would be in the winter (i.e. you are not working as hard).
But I know for me I made conscious efforts in the past few years to make sure behavior remained the same. When it did. Sales barely dented in summer. Or if I would have a slow month on clips or DVD, I would have a kick ass month somewhere else equally things out.
But in this case, I have noticed lowest CCB's sales I can recall.
