I've never redeemed any of my digital codes. I threw them all away.
I've never clicked on special occasion Google icons.
I've never clicked on any birthday or christmas gifts from my e-mail account I've been using since 2001. I assume they were promo codes / coupons for things I have no use for. Like that one time they actually showed me my birthday present, a $3 off coupon when buying two specific bottles of wine at a specific online shop
I've never used Firefox Sync.
I've never downloaded an app for my smartphone.