Clothing and department stores. At Kohl's, a 15 percent discount is available every Wednesday for those at least 60. Belk offers a discount to those 55 and up on the first Tuesday of every month.

Other retailers which have the best discounts this year, according to the analysis, include Belk, Macy's, Kohl's and Walmart. Costco, meanwhile, was at the bottom of the list - only offering an 18 ...