[icedchai]

If you are concerned, use a different email account for receipt purposes.

[Nextgrid]

I shouldn't have to create/maintain/remember unique email addresses just to keep the privacy that paper receipts already offer.

[icedchai]

If you're that concerned about "privacy", then yes you should.

Do you also pay in cash for everything? If not, you're already being tracked by your credit cards and will be re-marketed to... You may as well sign up for rewards/store cards and get the discounts.