AFFCOMMBAFIRSTACR20
Found some pretty great deals when stacking the codes with the cashback.
Beware products with the red "on sale" tag is excluded from discount codes but the 15% cashback still applies. You can only use one discount code at a time and don't use the other codes you can find on the site as it'll invalidate your cashback.
$5 off on $49+ or $15 off on $99+
AFFCOMM
15% off & 200 A-Points for new customers registration
BAFIRST
20% off on $99+
ACR20
Cashrewards also has '12% off for subscribers on orders $49+' listed but I couldn't find a way to access it