Put All of Your Club Cards on One Card
If you get tired of carrying all of your grocery and other discount cards in your wallet or keychain, there is a website called justoneclubcard.com where you can generate one card which lists all of your discount card information. It's really convenient, neat and costs nothing. I heard about it on my local radio station. All of the correct barcodes are printed after you enter each store. Not all stores are available which the author lists on his website. However, there are plenty of stores that he has already programmed into this applicaiton.
I tried this a while back and was frustrated by the various store scanners, which refused to pick out the correct bar code from the four I had listed...maybe I should try again. *** UPDATE *** the site mentions this and now provides additional instructions to make a sleeve for the card that slides to show only the number you need. sweet.