What are some things you will only buy with cash?

Credit cards, debit cards, checks, and loyalty cards all identify you individually when you make a purchase. Some companies gather the information from your purchases to create a profile of your shopping habits and use it to predict future activity.

Realizing all that, you purposely choose to only buy certain things with cash.

There are of course, innocuous items like personal hygiene/sex items, over-the-counter drugs, alcohol, etc. But also covert activity like, for example, hiding the tracks of an illicit affair.

Anything you’d care to share with your fellow Flutherites? Tips, tricks, lessons learned, best practices, etc.?