Login or register here, then go to this link and click “get Cashback”. It will send you to the Walmart website, where you have to purchase the 125oz Bottle of Tide Detergent for $5 with free in store pickup. Within a week or so your TopCashBack account you will be paid $5(or $5.83 if you opt for an Amazon gift card or AMEX gift card), making it Free. The purchase at Walmart must must only contain one 125oz Bottle of Tide Detergent for $5. The offer may only be for new accounts, and select existing accounts.