Oakley does Xmas and summer contests for Iacon stores which allow you to earn retail credits for each item you sell.
glasses = $5, polarized glass/watch = $10, Thump = $15, anything else (clothes, bags, any accessories) = $1
So last Xmas I did rather well, ended up with $580, and got a brushed Judge :)
We have a summer contest going on now, although this time you can only get glasses (and only one pair), so I'm getting Split Thread Rx with AR clear I think.
Right now I have Ti Square Wires with Ti Clear Rx (which I also got for free) and I get too many "why are you wearing sunglasses at night?" people when I'm out.