Jan 19 1980 Costco CFL 60W 4 for $1 , 100W 6 for $3.99 Posted on January 19, 1980 by DealFinder Rating: 0 Posted By: sirmium Views: 264 Replies: 2 My first deal here: Costco has CFL light bulbs on sale (Utility Rebate). 60w 4 for $ 1100W 6 for $ 3.99 This is in Michigan, might be different in your local store. Home & Garden Deals Fatwallet.com Hot Deals