Follow these steps to spend $30, get $35 back and have a google mini
1. Buy a google mini from google express, choose walmart as the store (see link). If you buy on black friday it's $30
2. When you get your mini, it will ask you to link to your walmart account. if you don't have one, create one on walmart.com. As soon as you link, you get a $25 coupon to spend on google express
3. Then go to google expess and place an order with walmart. On checkout you can apply your $25 coupon.
4. extra: If you are a new user to google express, you will get an extra $10 off your first order of $40 or more, with free shipping.
So you spent $30 and got coupons of $35 and yes you got a google mini for free!!!