I bought one of those hoses that you see on TV, forget the name now, amazing hose or something like that. The one that expands and contracts and rolls up tight. I use it strictly for Brewing, keeping it in the house, warm during the winter, then when I need it, I take it out for brewing.
Depending on weather we have snow or not, ends up determining my exact cooling method. I hate snow in general any more, but for brewing have come to love it. If we have snow on the ground, I just stick my portable sump pump in a coller and pack it full of snow. When it's time to cool, I had a little water, to get things running, and just pump through my immersion chiller and back to the cooler. There I just keep adding snow as it melts. Great way to not waste a lot of water.
If we don't have any snow, this time of year the ground water is down to about 47 degrees, so it's a great temp to just keep running straight through my chiller. I've also been known to fill up a bunch of empty gallon milk jugs with water and freeze those to use in the cooler with the pump as chilling ice as well. Works pretty good in the winter, because I can bring 5 or six of them out without worrying about them melting.
I actually love brewing in the winter. No bugs, usually free ice and standing around the boil is nice to keep warm as opposed to making me sweat even more. I usually brew right at the edge of my garage, so when it comes to cooling time I can close the door and help stay warm.