One in an occasional series on the secrets of blogging.
The longer that you have been blogging, the more materials you have accumulated, and the more things you have written that may possibly attract search traffic.
By tuning into this effect you can get distant early warning of when people are interested in topics that are seasonal, and start work on them before they hit mainstream news and media. Your cumulative advantage is not just that you've done your homework last year, but that you know when people are starting to be interested in seasonal things.
For instance, this afternoon's traffic included this query:
which reminds me that Halloween is right around the corner, and that it's time to check out the pumpkin crop and locate a source for this year.
When someone says to you that they won't write about or invest in topics that have limited "shelf life" - the annual outhouse races, the chicken broil, the first tomato, football parking, the opening day of deer season - smile and know that those one time events happen every year and if you ever write something reasonable about it you'll start getting repeat visits next year.