Kohl's mystery codes, good today only and for non-cardholders too! Check your inbox for a unique promo code, which will be for either 40%, 30%, or 20% off, no Kohl's card necessary. **Does anyone need a 30% off code? I have one I'm not using!** (The 30% off plus shipping and tax would make the Plasma Car $39ish shipped for non-cardholders.)