Not sure if this was answered somewhere in this thread, but there's 4 pages so I don't know that I'm going to look through all of that. ANd this is probably a really dumb question, but where exactly am I supposed to put the code to create a BOGO 50% sale? And exactly which code am I supposed to be using? I tried this:

$this->add_cat_to_cat(1,2,3,4,5,6,7,8,9,10,11,12,"%", 50)

but it doesn't work. I'm sure I'm having a brain fart, but I don't know exactly what to do. Help please!