| Clue | Source | Date |
|---|---|---|
| What extra cost hopefully brings | LA Times Daily | 13 May 2020 |
| What extra cost hopefully brings | The Washington Post | 13 May 2020 |
| Sales incentive | Wall Street Journal | 16 Jan 2019 |
| Sales incentive | ||
| What good shoppers look for | USA Today | 03 Apr 2015 |
| What good shoppers look for |