CVS: FREE Frito Lay Chips After ECBApril 28, 2011 by Mitchell Wischmann This post may contain a link to an affiliate. See my disclosure policy for more information. Wow! CVS has a great unadvertised ECB deal on Frito Lay chips! Buy 3 bags of Frito Lay Chips and you’ll get back a $1 ECB (limit 5). This also seems to be working on the small bags, and you can score those for FREE:$1 ECB wyb 3 Frito Lay Chips (limit 5) *Unadvertised promotion* Buy 3 bags of single serve Frito Lay Chips, on sale 3 for $1 Pay $1 Get back a $1 ECB Final cost: 3 bags for FREE!