A reader informed me that Walgreen's has changed the old "Walk with Walgreen's" to a new program called "Steps." Steps lets you earn Balance Rewards points by doing such things as recording walking/exercise, your weight and listing goals. You can also earn points by buying selected items at the store.
Points are worth $.001 each, so 5,000 points translates to $5. The website is somewhat confusing, so the details aren't always obvious, but the program itself is pretty straightforward. You can earn 20 points per mile you walk, as well as 20 points per weigh-in, up to 2,000 points per month. Not exactly big cash, but better than nothing.
Read more about Steps here.