I by it fresh, and keep it refrigerated until I am ready to use it.
Within reason, there is no need to do so, as refrigeration will not have any effect on short term storage. Normal room temperatures will be fine. Air conditioned rooms, or cooler basements are slightly better.
The important thing is to keep the film away from extreme environmental variations, and in particular extreme heat and humidity.
For short to medium term (within the "Develop Before" time frame), the changes caused by the natural aging process of the film will be so small as to be inconsequential. While refrigeration doesn't hurt, its main role in the short term is to protect against temperature variation.
If you expect to need to store film for longer terms, refrigeration will extend the life of the film, by slowing down the aging process. Freezing will extend it even further.