PocketShop for Pocket PC and Windows - description from Softdepia.com:
PocketShop 4 comes packed with over 150 common items already in its starting catalog. It lets lets you build a shopping list with just a few taps of the stylus. Then, you can either cradle your PDA and further edit or print out your list, or take your PDA with you to the store. With PocketShop, your everyday shopping is easier.
PocketShop for Pocket PC and Windows is a "Free to try" program. You can download and try it for an evaluation period.