1. VTech [staples.com] Add this to your cart
2. Add a low cost item to get the cost up above $75. (Such as these pens [staples.com])
3. Use a $25 off $75 coupon (you know where to get them).
4. Use the SER for $30 off
5. Total cost: $75+$1-$25-$30 = $21 + tax + cost of coupon

Great deal for this phone set.