Another recommendation for Balega socks. I like the Ventilators, personally. $8 a pair, usually and worth every penny. they're also basically indestructable.
Secondly, I understand the OP is "rotating" shoes. Why? I find that shoes don't typically break in for at least a couple of hundred miles. Constantly swapping shoes seems counter-productive. In fact, the single best piece of information I ever received on running shoes is that once you find something that is comfortable and doesn't injure you, stop experimenting and stick with them. This would explain why I have a closet full of Asics Cumulus shoes.
However, take my advice with a grain of salt as I have non-conventional views on shoes. For example, I also think the "swap shoes every 300 miles" rule is completely ridiculous. Personally, I've put over 2,000 miles on pairs of shoes in the past with absolutely no issues. I generally have to throw them away because I get too many holes in the uppers, the sole is never a problem. The fact that I have a neutral stride and don't weigh very much may have some bearing here.