Every time between now and May 31, when you sign using your Debit MasterCard, you’ll be automatically entered in a sweepstakes to receive $1,000/month for the next ten years. If you use your Debit MasterCard PayPass, you’ll receive double entries for each eligible purchase. Note that PIN-based and international transactions are not eligible.

Full details are available at http://www.priceless.com/promo/sweepstakes.html.