So, u go to some supermarket and grab about 3-5 bags of the douple xp doritos. then go to another isle thats theres not many people turn the bags around then there will be a code...write em down or save them as a note or a draft in ur fone then go home and enter a bunch of codes...oh yeah i forgot to say this but after uve gotten the 4 bag codes go bakc put those back on the shelf and grab another 4 more and keep repeating! hope i help..i will be doing this either tonite or sometime else this week so mmaybe i will give some away! hope i helped