Sometimes you have the best shoes, with the best fit, but they could use a little more traction. For instance, these Shimano shoes are great for MTN biking, but could use a little more tread when used in the cyclocross arena.
Try cutting up an old cross tire and use some left over tubular glue to bond it to the sole of your shoe. You’ll get improved off the bike traction, and have a less slippery cradle for those not-clipped-in race moments.
dog4aday on 
Sweet. I like that one. Very much.
nice. i didnt have an old tire… so i used $3 rubber basketball from Target. worked perfect. see pics
http://www.flickr.com/photos/argylesocks/sets/72157601401883037/
also used cheap bmx handlebar grips that worked as well.
Barge cement works better as a bonding agent. YOu should be able to get it at shoe repair stores.
Nice tip…I just had a similar conversation with Molly the other day at Veloshop.
oh so clever. i’d never heard of the broom and tire trick either and used it recently. fantabulous.