SHOPPING MAIL
Plenty of stores hold sporadic specials and sales. Many businesses, however, make it possible for customers to save 10 percent, 20 percent, and even 30 percent off the purchase through ongoing enticements. In many cases, customers don't have to do more than sign up to get emails or texts that can be opted out of at any time -- an easy way for big bargains in an era of unlimited free email accounts.