Here's one of those great simple ideas that you wish you had yourself: Vinyl
stick-on or fabric iron-on labels with dairy-free logos or warnings.
I put up a post on my blog about it, but I thought that people here would
also want to know. Check out all the details of my post at:
http://planetlactose.blogspot.com/2006/07/stuck-on-you-allergy-packs.html
I have no connection with this business, BTW. It just looks useful and easy.
Steve Carper