KeyRing
KeyRing on the Droid is a unique application that recreates a copy of the barcode on your rewards cards and stores them on your Droid. The barcode scanner can then pick up the barcode from your Droid’s screen. Just show your Droid’s screen with KeyRing open and the relevant barcode showing and the cashier can point the scanner at it. This means you no longer have to carry around a bunch of rewards cards, and no longer have to avoid adding a new card because you’re worried your real-life keyring is getting too crowded. The app supports over 600 major retailers, which should cover a majority, if not all, of your existing rewards cards.
KeyRing has recently been updated to work specifically on the Droid, so you shouldn’t have any problems with it. Tapping on the menu will show an option to see scanning tips. These include keeping the Droid perpendicular to the scanner and making sure the scanner is about 6 inches away from the screen. It is advisable to go through the tips immediately after downloading the app. Here’s a nice video that goes through these scanning tips:
