Groupon is offering a $10 voucher to Whole Foods for $5. This offer is available today only, although it could sell out before the end of day.
The great thing about this Groupon is that there is no expiration date! With Whole Foods being as expensive as it is this $5 off certificate is great! This Groupon is limited to 1 per account.
Remember to purchase through an online shopping portal to earn points/miles/cash back towards your $5 purchase! For example, Marriott is offering 5 points per dollar spent, American Airlines 3 miles per dollar spent, and Ebates 4.6% cash back per dollar spent.