Personally it seems like a waste of time to pursue a cord coop. If I have 10 LEs then I would need 160 cords. I buy mine from Home Depot for .94 like lot of other people. If I saved .10 per cord we are only talking about $16. Then I add in shipping and other time constraints and to me it is not worth even thinking about. Even I was to save .20 per cord I have too many other things to worry about and for me I have a brand new HD just one mile down the road from me. I've also bought cords at Walmart for .96. Looking at 3 wire cords is a waste also since there is no grounding available with the LEs. The only thing I do different is to use 14ga input cords on the LEs, although I know of people who use the std .94 cord for their input power as well. I make my own by buying a 100ft 14ga extension cord and then cutting it into 6ft lengths.