Wow you guys really rotate often. I am more in the range of 6 months.
6 months is about 3K miles for me:coffeedrink:
I do it every oil change, between 3000 and 3500 miles.
Since I drive the CJ in the summer, the XJ in the winter, and the F150 when I need to haul stuff, it works out to about 2 rotations per rig, per year.
5 tire rotation on the Jeeps, 4 tire on the truck.
Having lockers in the CJ, and a spool in the XJ, I'm pretty anal about keeping even tire wear. So I have not just a 'same size' spare, but buy 5 tires and have the spare on the same style wheel.
The truck spare is just a full size spare on a steel wheel, and is just that, a 'spare'. I just keep the best one of the set being replaced on the truck.