It's been said over and over again: The best way to prevent getting a cold is to wash your hands frequently. Some people, especially the little people, have not quite grasped exactly that a quick rinse under the water does not cut it when it comes to getting rid of germs.
A great new product out there is SquidSoap ($15.99 for a 4 pack, plus $3.99 shipping and handling). How it works is when you push down on the SquidSoap pump, a marker puts a small ink mark on your hand. The ink is designed to wash off rather easily but not until you’ve washed your hands thoroughly 15-20 seconds, which happens to be the recommended amount of time. Genius!
This product is intended to teach kids how to properly wash their hands but I can think of a lot of grown ups that could use a couple of reviews on hand washing. Buy SquidSoap on SquidSoap.com.